1
                                                                    Exhibit 4.21



                                             Bank of America




September 10, 1999


The Wackenhut Corporation
4200 Wackenhut Drive, Suite 100
Palm Beach Gardens, Florida 33410
Attn:    Frank Finizia
         Assistant Secretary and Corporate Counsel


Re:      364-DAY REVOLVING CREDIT FACILITY


Ladies/Gentlemen:

BANK OF AMERICA, N.A. ("LENDER") is pleased to make available to THE WACKENHUT
CORPORATION, a Florida corporation ("BORROWER"), a revolving credit facility on
the terms and subject to the conditions set forth below. Terms not defined
herein have the meanings assigned to them in EXHIBIT A hereto.

1.       THE FACILITY.

         (a)      THE COMMITMENT. Subject to the terms and conditions set forth
                  herein, Lender agrees to make available to Borrower from the
                  date hereof until the Maturity Date a revolving line of credit
                  providing for loans ("LOANS") in an aggregate principal amount
                  not exceeding at any time $30,000,000 (the "COMMITMENT").
                  Within the foregoing limit, Borrower may borrow, repay and
                  reborrow Loans until the Maturity Date.

         (b)      BORROWINGS, CONVERSIONS, CONTINUATIONS. Borrower may request
                  that Loans be (i) made as or converted to Base Rate Loans by
                  irrevocable notice to be received by Lender not later than
                  12:30 p.m. on the Business Day of the borrowing or conversion,
                  or (ii) made or continued as, or converted to, Offshore Rate
                  Loans by irrevocable notice to be received by Lender not later
                  than 12:30 p.m. three Business Days prior to the Business Day
                  of the borrowing, continuation or conversion. If Borrower
                  fails to give a notice of conversion or continuation prior to
                  the end of any Interest Period in respect of any Offshore Rate
                  Loan, Borrower shall be deemed to have requested that such
                  Loan be converted to a Base Rate Loan on the last day of the
                  applicable Interest Period.

                  Each Offshore Rate Loan shall be in a minimum principal amount
                  of $300,000 or an integral multiple thereof. Each Base Rate
                  Loan shall be in a




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                  minimum principal amount of $300,000. There shall not be more
                  than six (6) different Interest Periods in effect at any time.

         (c)      INTEREST. At the option of Borrower, Loans shall bear interest
                  at a rate per annum equal to (i) the Offshore Rate PLUS the
                  Applicable Margin; or (ii) the Base Rate. Interest on Base
                  Rate Loans when the Base Rate is determined by Lender's
                  "prime" rate shall be calculated on the basis of a year of 365
                  or 366 days and actual days elapsed. All other interest
                  hereunder shall be calculated on the basis of a year of 360
                  days and actual days elapsed.

                  Borrower promises to pay interest (i) for each Offshore Rate
                  Loan, on the last day of the applicable Interest Period, and,
                  if the Interest Period is longer than three months, on the
                  respective dates that fall every three months after the
                  beginning of the Interest Period; (ii) for Base Rate Loans, on
                  the last Business Day of each calendar quarter; and (iii) for
                  all Loans, on the Maturity Date. If the time for any payment
                  is extended by operation of law or otherwise, interest shall
                  continue to accrue for such extended period.

                  Upon the occurrence and during the continuance of an Event of
                  Default hereunder, Borrower shall pay, but only to the extent
                  permitted by law, interest (after as well as before judgment)
                  on the outstanding amount of all Loans hereunder at a rate per
                  annum equal to the then applicable rate plus 2.0%. Such
                  interest shall be payable on demand.

                  In no case shall interest hereunder exceed the amount that
                  Lender may charge or collect under applicable law.

         (d)      EVIDENCE OF LOANS. The Loans and all payments thereon shall be
                  evidenced by Lender's loan accounts and records; PROVIDED,
                  HOWEVER, that upon the request of Lender, the Loans may be
                  evidenced by a grid promissory note in the form of EXHIBIT B
                  hereto, instead of or in addition to such loan accounts and
                  records. Such loan accounts, records and promissory note shall
                  be conclusive absent manifest error of the amount of the Loans
                  and payments thereon. Any failure to record any Loan or
                  payment thereon or any error in doing so shall not limit or
                  otherwise affect the obligation of Borrower to pay any amount
                  owing with respect to the Loans.

         (e)      FEES. Borrower promises to pay the following fees in
                  accordance with the terms hereof:

                  (i) UPFRONT FEE. Borrower shall pay to Lender an upfront fee
                  (the "UPFRONT FEE") in accordance with the terms and
                  conditions of that certain letter agreement dated as of August
                  27, 1999 between Borrower and Lender. The Upfront Fee shall be
                  due and payable to Lender upon the execution and delivery of
                  this Agreement and shall be non-refundable once paid.








                                      -1-
   3

                  (ii) COMMITMENT FEE. Borrower shall pay to Lender a commitment
                  fee (the "COMMITMENT FEE") in accordance with the terms of the
                  pricing grid appearing below on the actual daily unused
                  portion of the Commitment, payable in arrears on the last
                  Business Day of each calendar quarter and on the Maturity
                  Date, and calculated on the basis of a year of 360 days and
                  actual days elapsed.

                           FIXED CHARGES COVERAGE RATIO          COMMITMENT FEE
                           ----------------------------          --------------
                           Greater than 2.0x                          .20%

                           Less than or equal to 2.0x but             .25%
                           greater than 1.75x

                           Less than or equal to 1.75x but            .30%
                           greater than or equal to 1.5x

         (f)      REPAYMENT. Borrower promises to pay all Loans then outstanding
                  on the Maturity Date.

                  Borrower shall make all payments required hereunder not later
                  than 12:30 p.m. (other than if such payment is made by a debit
                  by the Lender to an account designated by Borrower) on the
                  date of payment in same day funds in United States Dollars at
                  the office of Lender located at Charlotte, North Carolina or
                  such other address as Lender may from time to time designate
                  in writing.

                  All payments by Borrower to Lender hereunder shall be made to
                  Lender in full without set-off or counterclaim and free and
                  clear of and exempt from, and without deduction or withholding
                  for or on account of, any present or future taxes, levies,
                  imposts, duties or charges of whatsoever nature imposed by any
                  government or any political subdivision or taxing authority
                  thereof. Borrower shall reimburse Lender for any taxes imposed
                  on or withheld from such payments (other than taxes imposed on
                  Lender's income, and franchise taxes imposed on Lender, by the
                  jurisdiction under the laws of which Lender is organized or
                  any political subdivision thereof).

         (g)      PREPAYMENTS. Borrower may, upon three Business Days' notice,
                  in the case of Offshore Rate Loans, and upon same-day notice
                  in the case of Base Rate Loans, prepay Loans on any Business
                  Day; PROVIDED that Borrower pays all Breakage Costs (if any)
                  associated with such prepayment on the date of such
                  prepayment. Prepayments of Offshore Rate Loans must be
                  accompanied by a payment of interest on the amount so prepaid.
                  Prepayments must be in a principal amount equal to (i) at
                  least $5,000,000 (or a greater amount which is an integral
                  multiple of $1,000,000) or (ii) to the extent Borrower chooses
                  to prepay the outstanding principal balance of all Loans, the
                  outstanding principal amount thereof.





                                      -2-
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         (h)      COMMITMENT REDUCTIONS. Borrower may, upon five Business Days'
                  notice, reduce or cancel the undrawn portion of the
                  Commitment, PROVIDED, that the amount of such reduction is not
                  less than $5,000,000 or such greater amount which is in an
                  integral multiple of $1,000,000. Each such reduction shall
                  permanently reduce the Commitment.

2.       (a)      CONDITIONS PRECEDENT TO INITIAL LOAN. As a condition
                  precedent to the initial Loan hereunder, Lender must receive
                  the following from Borrower in form satisfactory to Lender:

                  (i)      the enclosed duplicate of this Agreement duly
                           executed and delivered on behalf of Borrower;

                  (ii)     a certified borrowing resolution or other evidence of
                           Borrower's authority to borrow;

                  (iii)    a certificate of incumbency;

                  (iv)     if requested by Lender, a promissory note as
                           contemplated in PARAGRAPH 1(d) above; and

                  (v)      such other documents (including legal opinions) as
                           Lender may reasonably request.

         (b)      CONDITIONS TO EACH BORROWING, CONTINUATION AND CONVERSION. As
                  a condition precedent to each borrowing (including the initial
                  borrowing), conversion and continuation of any Loan:

                  (i)      Borrower must furnish Lender with, as appropriate, a
                           notice of borrowing, conversion or continuation;

                  (ii)     each representation and warranty set forth in
                           PARAGRAPH 3 below (or incorporated therein by
                           reference) shall be true and correct in all material
                           respects as if made on the date of such borrowing,
                           continuation or conversion; and

                  (iii)    no Default or Event of Default shall have occurred
                           and be continuing on the date of such borrowing,
                           continuation or conversion.

                  Each notice of borrowing and notice of conversion or
                  continuation shall be deemed a representation and warranty by
                  Borrower that the conditions referred to in clauses (ii) and
                  (iii) above have been met.

3.       REPRESENTATIONS AND WARRANTIES. Reference is made to the Existing
         Credit Agreement and the representations and warranties of Lessee
         contained in Sections 6.01 through 6.04, 6.06 through 6.08, 6.10, 6.12,
         6.14, 6.16 and 6.17 of the Existing Credit Agreement





                                      -3-
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         (hereinafter referred to as the "INCORPORATED REPRESENTATIONS AND
         WARRANTIES"). Borrower agrees with Lender that the Incorporated
         Representations and Warranties (and all other relevant provisions of
         the Existing Credit Agreement related thereto, including without
         limitation all exhibits, schedules and the defined terms contained in
         Section 1.02 thereof, which are used in the Incorporated
         Representations and Warranties) are hereby incorporated by reference
         into this Agreement to the same extent and with the same effect as if
         set forth fully herein and shall inure to the benefit of Lender,
         without giving effect to any waiver, amendment, modification or
         replacement of the Existing Credit Agreement or any term or provision
         of the Incorporated Representations and Warranties occurring subsequent
         to the date of this Agreement, except to the extent otherwise
         specifically provided in the final paragraph of Section 4 of this
         Agreement. Borrower represents that the Incorporated Representations
         and Warranties are true and accurate as of the date hereof.

Borrower further represents and warrants that:

         (a)      FULL DISCLOSURE. No written statement made by Borrower to
                  Lender in connection with this Agreement, or in connection
                  with any Loan, contains any untrue statement of a material
                  fact or omits a material fact necessary to make the statement
                  made not misleading.

         (b)      POWER; AUTHORIZATION; ENFORCEABLE OBLIGATIONS. The execution,
                  delivery and performance of this Agreement and the other Loan
                  Documents by Borrower are within its powers and have been duly
                  authorized by all necessary action, and this Agreement is and
                  the other Loan Documents, when executed, will be, legal, valid
                  and binding obligations of Borrower, enforceable in accordance
                  with their respective terms. The execution, delivery and
                  performance of this Agreement and the other Loan Documents are
                  not in contravention of law or of the terms of Borrower's
                  organic documents and will not result in the breach of or
                  constitute a default under, or result in the creation of a
                  lien under any indenture, agreement or undertaking to which
                  Borrower is a party or by which it or its property may be
                  bound or affected.

         (c)      USE OF PROCEEDS. The proceeds of the Loans will be used solely
                  for working capital or general corporate purposes, and not in
                  contravention of Regulation U of the Board of Governors of the
                  Federal Reserve Bank or any other requirement of law.

         (d)      YEAR 2000 READINESS DISCLOSURE. Borrower has (i) initiated a
                  review and assessment of all areas within its and each of its
                  Subsidiaries' business and operations (including those
                  affected by suppliers, vendors and customers) that could be
                  adversely affected by the "Year 2000 Problem" (that is, the
                  risk that computer applications used by Borrower or any of its
                  Subsidiaries (or their respective suppliers, vendors and
                  customers) may be unable to recognize and perform properly
                  date-sensitive functions involving certain dates prior to and
                  any date after December 31, 1999), (ii) developed a plan and
                  timeline for addressing





                                      -4-
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                  the Year 2000 Problem on a timely basis, and (iii) to date,
                  implemented that plan in accordance with that timetable. Based
                  on the foregoing, Borrower believes that all computer
                  applications (including those of its and its Subsidiaries'
                  customers and vendors) that are material to its or any of its
                  Subsidiaries' business and operations are reasonably expected
                  on a timely basis to be able to perform properly
                  date-sensitive functions for all dates before and after
                  January 1, 2000 (that is, be "Year 2000 compliant"), except to
                  the extent that a failure to do so could not reasonably be
                  expected to have a Material Adverse Effect on Borrower or on
                  the transaction documented under this Agreement.

4.       COVENANTS. Reference is made to the Existing Credit Agreement and the
         covenants contained in Sections 7.01 through 7.23 of the Existing
         Credit Agreement (hereinafter referred to as the "INCORPORATED
         COVENANTS"). So long as principal of and interest on any Loan or any
         other amount payable hereunder or under any other Loan Document remains
         unpaid or unsatisfied or the Commitment has not been terminated,
         Borrower shall comply with the Incorporated Covenants, it being agreed
         that such covenants and agreements shall survive any termination,
         cancellation or discharge of the Existing Credit Agreement. Borrower
         agrees with Lender that the Incorporated Covenants (and all other
         relevant provisions of the Existing Credit Agreement related thereto,
         including without limitation all exhibits, schedules and the defined
         terms contained in Section 1.02 thereof, which are used in the
         Incorporated Covenants) are hereby incorporated by reference into this
         Agreement to the same extent and with the same effect as if set forth
         fully herein and shall inure to the benefit of Lender, without giving
         effect to any waiver, amendment, modification or replacement of the
         Existing Credit Agreement or any term or provision of the Incorporated
         Covenants occurring subsequent to the date of this Agreement, except to
         the extent otherwise specifically provided in the following paragraph
         of this Section 4.

         In the event a waiver is granted under the Existing Credit Agreement or
         an amendment or modification is executed with respect to the Existing
         Credit Agreement, and such waiver, amendment and/or modification
         affects the Incorporated Representations and Warranties or the
         Incorporated Covenants, then such waiver, amendment or modification
         shall be effective with respect to the Incorporated Representations and
         Warranties and the Incorporated Covenants as incorporated by reference
         into this Agreement only if consented to in writing by the Lender. In
         the event of any replacement of the Existing Credit Agreement with a
         similar credit facility (the "NEW FACILITY") the representations and
         warranties and covenants contained in the New Facility which correspond
         to the representations and warranties and covenants contained in (a)
         Sections 6.01 through 6.04, 6.06 through 6.08, 6.10, 6.12, 6.14, 6.16
         and 6.17 and (b) Sections 7.01 through 7.23, respectively, of the
         Existing Credit Agreement shall become the Incorporated Representations
         and Warranties and the Incorporated Covenants hereunder only if
         consented to in writing by Lender and, if such consent is not granted
         or if the Existing Credit Agreement is terminated and not replaced,
         then the representations and warranties and covenants contained in (a)
         Sections 6.01 through 6.04, 6.06 through 6.08, 6.10, 6.12, 6.14, 6.16
         and 6.17 and (b) Sections 7.01 through 7.23, respectively, of the
         Existing Credit Agreement (together with any modifications or
         amendments approved in accordance with this paragraph) shall continue
         to be the Incorporated Representations and Warranties and the
         Incorporated Covenants hereunder.





                                      -5-
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5.       EVENTS OF DEFAULT. The following are "EVENTS OF DEFAULT:"

         (a)      Borrower fails to pay any principal of any Loan as and on the
                  date when due; or

         (b)      Borrower fails to pay any interest on any Loan, or any fees
                  due hereunder, or any portion thereof, within three days after
                  the date when due; or

         (c)      Any representation or warranty in any Loan Document (including
                  without limitation the Incorporated Representations and
                  Warranties) or in any certificate, agreement, instrument or
                  other document made or delivered by Borrower pursuant to or in
                  connection with any Loan Document proves to have been
                  incorrect when made or deemed made; or

         (d)      Borrower fails to comply with any covenant or agreement
                  incorporated herein by reference pursuant to PARAGRAPH 4
                  above, subject to any applicable grace period and/or notice
                  requirement set forth in Sections 8.01(e) and (f) of the
                  Existing Credit Agreement (it being understood and agreed that
                  any such notice requirement shall be met by Lender's giving
                  the applicable notice to Borrower); or

         (e)      Any "Event of Default" specified in Article VIII of the
                  Existing Credit Agreement occurs and is continuing, without
                  giving effect to any waiver thereof pursuant to the Existing
                  Credit Agreement.

         Upon the occurrence of an Event of Default, Lender may declare the
         Commitment to be terminated, whereupon the Commitment shall be
         terminated, and/or declare all sums outstanding hereunder and under the
         other Loan Documents to be immediately due and payable, together with
         all interest thereon, without notice of default, presentment or demand
         for payment, protest or notice of nonpayment or dishonor, or other
         notices or demands of any kind or character, all of which are hereby
         expressly waived; PROVIDED, HOWEVER, that upon the occurrence of any
         event specified in Sections 8.01(j) or (k) of the Existing Credit
         Agreement, the Commitment shall automatically terminate, and all sums
         outstanding hereunder and under each other Loan Document shall become
         immediately due and payable, together with all interest thereon,
         without notice of default, presentment or demand for payment, protest
         or notice of nonpayment or dishonor, or other notices or demands of any
         kind or character, all of which are hereby expressly waived.

6.       MISCELLANEOUS.

         (a)      All financial computations required under this Agreement shall
                  be made, and all financial information required under this
                  Agreement shall be prepared, in accordance with generally
                  accepted accounting principles consistently applied.





                                      -6-
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         (b)      All references herein and in the other Loan Documents to any
                  time of day shall mean the local (standard or daylight, as in
                  effect) time of Charlotte, North Carolina.

         (c)      All Breakage Costs shall be for the account of Borrower.

         (d)      If on or prior to the first day of any Interest Period the
                  Lender determines (which determination shall be conclusive)
                  that (i) by reason of circumstances affecting the relevant
                  market, adequate and reasonable means do not exist for
                  ascertaining the Offshore Rate for such Interest Period or
                  (ii) the Offshore Rate will not adequately and fairly reflect
                  the cost to the Lender of funding Offshore Rate Loans for such
                  Interest Period, then the Lender shall give the Borrower
                  prompt notice thereof specifying the relevant amounts or
                  periods, and so long as such condition remains in effect, the
                  Lender shall be under no obligation to make additional
                  Offshore Rate Loans, continue Offshore Rate Loans or to
                  convert Loans into Offshore Rate Loans and Borrower shall, on
                  the last day(s) of the then current Interest Period(s) for the
                  outstanding Offshore Rate Loans, either prepay such Loans or
                  convert such Loans to Base Rate Loans in accordance with the
                  terms of this Agreement.

         (e)      Borrower shall reimburse or compensate Lender, upon demand,
                  for all costs incurred, losses suffered or payments made by
                  Lender which are applied or reasonably allocated by Lender to
                  the transactions contemplated herein (all as determined by
                  Lender in its reasonable discretion) by reason of any and all
                  future reserve, deposit, capital adequacy or similar
                  requirements against (or against any class of or change in or
                  in the amount of) assets, liabilities or commitments of, or
                  extensions of credit by, Lender; and compliance by Lender with
                  any directive, or requirements from any regulatory authority,
                  whether or not having the force of law.

         (f)      No amendment or waiver of any provision of this Agreement
                  (including any provision of the Existing Credit Agreement
                  incorporated herein by reference pursuant to PARAGRAPH 3 or
                  PARAGRAPH 4 above and any waiver of PARAGRAPH 5(d) above) or
                  of any other Loan Document and no consent by Lender to any
                  departure therefrom by Borrower shall be effective unless such
                  amendment, waiver or consent shall be in writing and signed by
                  a duly authorized officer of Lender, and any such amendment,
                  waiver or consent shall then be effective only for the period
                  and on the conditions and for the specific instance specified
                  in such writing. No failure or delay by Lender in exercising
                  any right, power or privilege hereunder shall operate as a
                  waiver thereof, nor shall any single or partial exercise
                  thereof preclude any other or further exercise thereof or the
                  exercise of any other rights, power or privilege.

         (g)      Except as otherwise expressly provided herein, notices and
                  other communications to each party provided for herein shall
                  be in writing and shall be delivered by hand or overnight
                  courier service, mailed or sent by telecopy or electronic mail







                                      -7-
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                  to the address provided from time to time by such party. Any
                  such notice or other communication sent by overnight courier
                  service, mail or telecopy shall be effective on the earlier of
                  actual receipt and (i) if sent by overnight courier service,
                  the scheduled delivery date, (ii) if sent by mail, the fourth
                  Business Day after deposit in the U.S. mail first class
                  postage prepaid, and (iii) if sent by telecopy, when
                  transmission in legible form is complete. All notices and
                  other communications sent by the other means listed in the
                  first sentence of this paragraph shall be effective upon
                  receipt. Notwithstanding anything to the contrary contained
                  herein, all notices (by whatever means) to Lender pursuant to
                  PARAGRAPH 1(b) hereof shall be effective only upon receipt.

         (h)      This Agreement shall inure to the benefit of the parties
                  hereto and their respective successors and assigns, except
                  that Borrower may not assign its rights and obligations
                  hereunder. Lender may at any time (i) assign all or any part
                  of its rights and obligations hereunder to any other Person
                  with the consent of Borrower, such consent not to be
                  unreasonably withheld, PROVIDED that no such consent shall be
                  required if the assignment is to an affiliate of Lender or if
                  a Default or Event of Default exists, and (ii) grant to any
                  other Person participating interests in all or part of its
                  rights and obligations hereunder without notice to Borrower.
                  Borrower agrees to execute any documents reasonably requested
                  by Lender in connection with any such assignment. All
                  information provided by or on behalf of Borrower to Lender or
                  its affiliates may be furnished by Lender to its affiliates
                  and to any actual or proposed assignee or participant.

         (i)      Borrower agrees to pay Lender, on demand, all reasonable
                  out-of-pocket expenses and legal fees (including the allocated
                  costs for in-house legal services) incurred by Lender in
                  connection with: (i) the preparation, negotiation and
                  execution of this Agreement or any other Loan Document and the
                  consummation of the transactions contemplated hereby and
                  thereby, (ii) any amendment, supplement or modification to
                  this Agreement or any other Loan Document and (iii) the
                  enforcement of this Agreement or any instruments or agreements
                  executed in connection herewith.

         (j)      If any provision of this Agreement or any other Loan Document
                  shall be held invalid or unenforceable in whole or in part,
                  such invalidity or unenforceability shall not affect the
                  remaining provisions hereof or thereof. This Agreement
                  supersedes all prior agreements and oral negotiations with
                  respect to the subject matter hereof.

         (k)      This Agreement may be executed in one or more counterparts,
                  and each counterpart, when so executed, shall be deemed an
                  original but all such counterparts shall constitute but one
                  and the same instrument.

         (l)      This Agreement and the other Loan Documents are governed by,
                  and shall be construed in accordance with, the laws of the
                  State of North Carolina and the applicable laws of the United
                  States of America. Borrower hereby submits to the





                                      -8-
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                  nonexclusive jurisdiction of the United States District Court
                  and each state court in the City of Charlotte, North Carolina
                  for the purposes of all legal proceedings arising out of or
                  relating to any of the Loan Documents or the transactions
                  contemplated thereby. Borrower irrevocably consents to the
                  service of any and all process in any such action or
                  proceeding by the mailing of copies of such process to
                  Borrower at its address set forth beneath its signature
                  hereto. Borrower irrevocably waives, to the fullest extent
                  permitted by law, any objection which it may now or hereafter
                  have to the laying of the venue of any such proceeding brought
                  in such a court and any claim that any such proceeding brought
                  in such a court has been brought in an inconvenient forum.

         (m)      BORROWER AND LENDER EACH WAIVE THEIR RESPECTIVE RIGHTS TO A
                  TRIAL BY JURY OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR
                  ARISING OUT OF OR RELATED TO THIS AGREEMENT, THE OTHER LOAN
                  DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

         (n)      THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE
                  FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE
                  CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR
                  SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO
                  UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.







                                      -9-
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Please indicate your acceptance of the Commitment on the foregoing terms and
conditions by returning an executed copy of this Agreement to the undersigned
not later than September 24, 1999.


                                             BANK OF AMERICA, N.A.


                                             By: /s/ Robert Mauriello
                                                 -------------------------------
                                                 Name:  Robert Mauriello
                                                 Title: Vice President


ACCEPTED AND AGREED TO:


THE WACKENHUT CORPORATION


By: /s/ Kenneth J. Matulia
    --------------------------------
Name:  Kenneth J. Matulia
Title: Assistant Secretary

Date: 20 Sept., 1999


STATE OF Maryland
COUNTY OF Anne Arandel

         I, Glenda K. White, a Notary Public for said County and State, do
hereby certify that Kenneth J. Matulia, the Assistant Secretary of The Wackenhut
Corporation, a Florida corporation, personally appeared before me this day, and
being by me duly sworn, acknowledged, on behalf of The Wackenhut Corporation as
its duly authorized representative, the due execution of the foregoing
instrument.

         Witness my hand and official seal this 20th day of September, 1999.


(Official Seal)
                                          /s/ Glenda K. White
                                          --------------------------------------
                                          Notary Public



My Commission Expires December 1, 1999







                                      -10-
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                                                                      EXHIBIT A


                                   DEFINITIONS

Agreement:                  This letter agreement, as amended, restated,
                            extended, supplemented or otherwise modified in
                            writing from time to time.

Applicable Margin:          The appropriate applicable percentage corresponding
                            to the Fixed Charges Coverage Ratio in effect as of
                            the four quarter period most recently ended as
                            specified below:


                            Fixed Charges Coverage Ratio      Offshore Rate Loan
                            ----------------------------      ------------------

                            Greater than 2.0x                        .675%

                            Less than or equal to 2.0x but           .925%
                            greater than 1.75x

                            Less than or equal to 1.75x but          1.30%
                            greater than or equal to 1.5x

                            The Applicable Margin shall be established at the
                            end of each fiscal quarter of Borrower (each, a
                            "DETERMINATION DATE"). Any change in the Applicable
                            Margin following each Determination Date shall be
                            determined based upon the computations calculated
                            and set forth in the certificate delivered in
                            accordance with Section 7.17(f) of the Existing
                            Credit Agreement, and shall be effective commencing
                            on the date following the date such certificate is
                            received (or, if earlier, the date such certificate
                            was required to be delivered) until the date
                            following the date on which a new certificate is
                            delivered or required to be delivered, whichever
                            shall first occur; PROVIDED, if Borrower shall fail
                            to deliver such certificate within five (5) days
                            after the time period required by Section 7.17 of
                            the Existing Credit Agreement, then the Applicable
                            Margin shall correspond to the largest Applicable
                            Margin set forth in the grid above from the date
                            such certificate was required to be delivered until
                            the appropriate certificate is so delivered;
                            PROVIDED FURTHER, that the Applicable Margin will
                            increase by .25% on April 2, 2000 and each scheduled
                            fiscal quarter of Borrower ending thereafter until
                            the Loans are paid in full and the Commitment
                            terminated. Notwithstanding the foregoing, if at any
                            time the certificate furnished pursuant to Section
                            7.17(f) of the Existing Credit Agreement shall
                            disclose that Consolidated Funded Debt (excluding
                            Funded Debt of Wackenhut Corrections Corporation, a
                            Florida corporation and Subsidiary of Borrower, from
                            Consolidated Funded Debt) exceeds 40% of Total
                            Capitalization (but does not exceed 50% of Total
                            Capitalization), then there shall be added to the
                            Applicable Margin set forth above .25%.





                                      A-1
   13

Base Rate:                  A fluctuating rate per annum equal to the higher of
                            (a) the Federal Funds Rate plus 1/2 of 1% and (b)
                            the rate of interest publicly announced from time to
                            time by Lender as its "prime" rate. The Lender's
                            prime rate is the per annum rate of interest
                            established from time to time by Lender as its prime
                            rate, which rate may not be the lowest rate of
                            interest charged by Lender to its customers. Any
                            change in the prime rate announced by Lender shall
                            take effect at the opening of business on the day
                            specified in the public announcement of such change.

Base Rate Loan:             A Loan bearing interest based on the Base Rate.

Breakage Costs:             Any loss, cost or expense incurred by Lender
                            (including any loss of anticipated profits and any
                            loss or expense arising from the liquidation or
                            reemployment of funds obtained by Lender to maintain
                            the relevant Offshore Rate Loan or from fees payable
                            to terminate the deposits from which such funds were
                            obtained) as a result of (i) any continuation,
                            conversion, payment or prepayment of any Offshore
                            Rate Loan on a day other than the last day of the
                            Interest Period therefor (whether voluntary,
                            mandatory, automatic, by reason of acceleration, or
                            otherwise); or (ii) any failure by Borrower (for a
                            reason other than the failure of Lender to make a
                            Loan when all conditions to making such Loan have
                            been met by Borrower in accordance with the terms
                            hereof) to prepay, borrow, continue or convert any
                            Offshore Rate Loan on a date or in the amount
                            notified by Borrower. The certificate of Lender as
                            to its costs of funds, losses and expenses incurred
                            shall be conclusive absent manifest error.

Business                    Day: Any day other than a Saturday, Sunday, or other
                            day on which commercial banks are authorized to
                            close under the laws of, or are in fact closed in,
                            the State of North Carolina and, if such day relates
                            to any Offshore Rate Loan, means any such day on
                            which dealings in dollar deposits are conducted by
                            and between banks in the offshore dollar interbank
                            market.

Consolidated Funded Debt:   As defined in the Existing Credit Agreement.

Default:                    Any event that, with the giving of any notice, the
                            passage of time, or both, would be an Event of
                            Default.

Event of Default:           Has the meaning set forth in PARAGRAPH 5.







                                      A-2
   14

Existing Credit             The Amended and Restated Revolving Credit and
Agreement:                  Reimbursement Agreement dated December 30, 1997 by
                            and among Borrower, NationsBank, National
                            Association (now known as Bank of America, N.A.), as
                            administrative agent, Scotiabanc, as co-agent, and
                            the lenders party thereto from time to time (as
                            amended by that certain Amendment Agreement No. 1
                            dated as of March 12, 1998, Amendment Agreement No.
                            2 dated as of August 7, 1998, Amendment Agreement
                            No. 3 dated as of February 10, 1999, Amendment
                            Agreement No. 4 dated as of February 25, 1999,
                            Amendment Agreement No. 5 dated as of April 12, 1999
                            and Amendment Agreement No. 6 dated as of May 19,
                            1999)


Federal Funds Rate:         For any day, the rate per annum (rounded upwards,
                            if necessary, to the nearest 1/100 of 1%) equal to
                            the weighted average of the rates on overnight
                            Federal funds transactions with members of the
                            Federal Reserve System arranged by Federal funds
                            brokers on such day, as published by the Federal
                            Reserve Bank of New York on the Business Day next
                            succeeding such day; PROVIDED that (a) if such day
                            is not a Business Day, the Federal Funds Rate for
                            such day shall be such rate on such transactions on
                            the next preceding Business Day as so published on
                            the next succeeding Business Day, and (b) if no such
                            rate is so published on such next succeeding
                            Business Day, the Federal Funds Rate for such day
                            shall be the average rate charged to Lender on such
                            day on such transactions as determined by Lender.

Fixed Charges               As defined in the Existing Credit Agreement.
Coverage Ratio:

Funded Debt:                As defined in the Existing Credit Agreement.







                                      A-3
   15

Interest Period:            For each Offshore Rate Loan, (a) initially, the
                            period commencing on the date the Offshore Rate
                            Loan is disbursed or converted from a Base Rate Loan
                            and (b) thereafter, the period commencing on the
                            last day of the preceding Interest Period, and, in
                            each case, ending on the earlier of (x) the Maturity
                            Date and (y) one, two, three or six months
                            thereafter, as requested by Borrower; PROVIDED that:

                            (i)     any Interest Period that would otherwise end
                                    on a day that is not a Business Day shall be
                                    extended to the next succeeding Business Day
                                    unless such Business Day falls in another
                                    calendar month, in which case such Interest
                                    Period shall end on the next preceding
                                    Business Day; and

                            (ii)    any Interest Period which begins on the last
                                    Business Day of a calendar month (or on a
                                    day for which there is no numerically
                                    corresponding day in the calendar month at
                                    the end of such Interest Period) shall end
                                    on the last Business Day of the calendar
                                    month at the end of such Interest Period.

Loan Documents:             This Agreement, and any promissory note,
                            certificate, fee letter, and other instrument,
                            document or agreement delivered in connection with
                            this Agreement.

Material Adverse            Any set of circumstances or events which (a) has or
Effect:                     could reasonably be expected to have any material
                            adverse effect whatsoever upon the validity or
                            enforceability of any Loan Document, (b) is or could
                            reasonably be expected to be material and adverse to
                            the condition (financial or otherwise), business
                            operations or prospects of Borrower or (c)
                            materially impairs or could reasonably be expected
                            to materially impair the ability of Borrower to
                            perform its obligations and liabilities under this
                            Agreement or any other Loan Document.

Maturity Date:              September 8, 2000, or such earlier date on which the
                            Commitment may terminate in accordance with the
                            terms hereof.

Offshore Rate:              For any Interest Period with respect to any Offshore
                            Rate Loan, a rate per annum determined pursuant to
                            the following formula:

                                                      Offshore Base Rate
                                    Offshore Rate = -----------------------
                                                       1.00 - Eurodollar
                                                       Reserve Percentage
                            Where,

                                    "OFFSHORE BASE RATE" means, for such
                                    Interest Period:





                                      A-4
   16

                                    (a)      the rate per annum (carried out to
                                             the fifth decimal place) equal to
                                             the rate determined by Lender to be
                                             the offered rate that appears on
                                             the page of the Telerate Screen
                                             that displays an average British
                                             Bankers Association Interest
                                             Settlement Rate (such page
                                             currently being page number 3750)
                                             for deposits in dollars (for
                                             delivery on the first day of such
                                             Interest Period) with a term
                                             equivalent to such Interest Period,
                                             determined as of approximately
                                             11:00 a.m. (London time) two
                                             Business Days prior to the first
                                             day of such Interest Period, or

                                    (b)      in the event the rate referenced in
                                             the preceding clause (a) does not
                                             appear on such page or service or
                                             such page or service shall cease to
                                             be available, the rate per annum
                                             (carried to the fifth decimal
                                             place) equal to the rate determined
                                             by Lender to be the offered rate on
                                             such other page or other service
                                             that displays an average British
                                             Bankers Association Interest
                                             Settlement Rate for deposits in
                                             dollars (for delivery on the first
                                             day of such Interest Period) with a
                                             term equivalent to such Interest
                                             Period, determined as of
                                             approximately 11:00 a.m. (London
                                             time) two Business Days prior to
                                             the first day of such Interest
                                             Period, or

                                    (c)      in the event the rates referenced
                                             in the preceding clauses (a) and
                                             (b) are not available, the rate per
                                             annum determined by Lender as the
                                             rate of interest at which dollar
                                             deposits (for delivery on the first
                                             day of such Interest Period) in
                                             same day funds in the approximate
                                             amount of the applicable Offshore
                                             Rate Loan and with a term
                                             equivalent to such Interest Period
                                             would be offered by Lender's London
                                             Branch to major banks in the
                                             offshore dollar market at their
                                             request at approximately 11:00 a.m.
                                             (London time) two Business Days
                                             prior to the first day of such
                                             Interest Period.







                                      A-5
   17

                            "EURODOLLAR RESERVE PERCENTAGE" means, for any day
                            during any Interest Period, the reserve percentage
                            (expressed as a decimal, rounded upward to the next
                            1/100th of 1%) in effect on such day applicable to
                            Lender under regulations issued from time to time by
                            the Board of Governors of the Federal Reserve System
                            for determining the maximum reserve requirement
                            (including any emergency, supplemental or other
                            marginal reserve requirement) with respect to
                            Eurocurrency funding (currently referred to as
                            "Eurocurrency liabilities"). The Offshore Rate for
                            each outstanding Offshore Rate Loan shall be
                            adjusted automatically as of the effective date of
                            any change in the Eurodollar Reserve Percentage.

Offshore Rate Loan:         A Loan bearing interest based on the Offshore Rate.

Subsidiary:                 A corporation, partnership, joint venture, limited
                            liability company or other business entity of which
                            a majority of the shares of securities or other
                            interests having ordinary voting power for the
                            election of directors or other governing body (other
                            than securities or interests having such power only
                            by reason of the happening of a contingency) are at
                            the time beneficially owned, or the management of
                            which is otherwise controlled, directly, or
                            indirectly through one or more intermediaries, or
                            both, by Borrower.

Total Capitalization:       As defined in the Existing Credit Agreement.









                                      A-6
   18
                                                                      EXHIBIT B

                             FORM OF PROMISSORY NOTE


$30,000,000                                                   September 10, 1999

         FOR VALUE RECEIVED, the undersigned, THE WACKENHUT CORPORATION, a
Florida corporation ("BORROWER"), hereby promises to pay to the order of BANK OF
AMERICA, N.A. ("LENDER") the principal sum of Thirty Million Dollars
($30,000,000) or, if less, the aggregate unpaid principal amount of all Loans
made by Lender to Borrower pursuant to the letter agreement, dated as of
September 10, 1999 (such letter agreement, as it may be amended, restated,
extended, supplemented or otherwise modified from time to time, being
hereinafter called the "AGREEMENT"), between Borrower and Lender, on the
Maturity Date. Borrower further promises to pay interest on the unpaid principal
amount of the Loans evidenced hereby from time to time at the rates, on the
dates, and otherwise as provided in the Agreement.

         Lender is authorized to endorse the amount and the date on which each
Loan is made or converted, the Interest Period therefor (if applicable) and each
payment of principal with respect thereto on the schedules annexed hereto and
made a part hereof, or on continuations thereof which shall be attached hereto
and made a part hereof; PROVIDED that any failure to so endorse such information
on such schedule or continuation thereof or any error in doing so shall not
limit or otherwise affect any obligation of Borrower under the Agreement or this
promissory note.

         This promissory note is the promissory note referred to in, and is
entitled to the benefits of, the Agreement, which Agreement, among other things,
contains provisions for acceleration of the maturity of the Loans evidenced
hereby upon the happening of certain stated events and also for prepayments on
account of principal of the Loans prior to the maturity thereof upon the terms
and conditions therein specified.

         Unless otherwise defined herein, terms defined in the Agreement are
used herein with their defined meanings therein. This promissory note shall be
governed by, and construed in accordance with, the laws of the State of North
Carolina.



                                             THE WACKENHUT CORPORATION



                                             By: /s/ Kenneth J. Matulia
                                                 -------------------------------
                                             Name:  Kenneth J. Matulia
                                             Title: Assistant Secretary






                                      B-1
   19
                                                            SCHEDULE A TO NOTE

                BASE RATE LOANS AND REPAYMENT OF BASE RATE LOANS




      (1)                    (2)                             (3)                           (4)                      (5)
                                                    Amount of Base Rate
                     Amount of Base Rate              Loan Repaid or                 Unpaid Principal
                   Loan Made or Converted          Converted to Offshore            Balance of Offshore          Notation
     Date          from Offshore Rate Loan               Rate Loan                      Rate Loans               Made By
     ----          -----------------------         ---------------------             ----------------           ---------

                                                                                                    
- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------

- ---------------       ---------------                 ---------------                 --------------           ---------------









                                      B-2
   20


                                                             SCHEDULE B TO NOTE

            OFFSHORE RATE LOANS AND REPAYMENT OF OFFSHORE RATE LOANS






      (1)                (2)                 (3)                    (4)                   (5)                     (6)
                       Amount of                                  Amount of
                     Offshore Rate                              Offshore Rate         Unpaid Principal
                     Loan Made or                               Loan Repaid or           Balance of
                    Converted from                            Converted to Base           Offshore              Notation
     Date           Base Rate Loan      Interest Period            Rate Loan             Rate Loans              Made By
     ----           --------------      ---------------       -----------------       ----------------          --------

                                                                                               
- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------

- ---------------    ---------------      ---------------         --------------         ---------------        ---------------







                                      B-3
   21

                        OUT OF STATE CLOSING AFFIDAVIT

STATE OF MARYLAND
COUNTY OF BALTIMORE


         BEFORE ME, the undersigned, a Notary Public in and for the State of
aforesaid, personally appeared Kenneth J. Matalia, the Asst. Secretary of THE
WACKENHUT CORPORATION (the "Borrower"), who, being by me first duly sworn,
stated:


         1. On the date hereof, the Borrower executed a credit or loan agreement
and/or attached promissory note (the "Loan Documents") of even date herewith in
the maximum principal amount of $30,000,000 in favor of Bank of America, N.A.
(the "Bank"), whose applicable offices are located in Charlotte, Mecklenburg
County, North Carolina.

         2. The Borrower has personally mailed or shipped the Loan Documents to
the Bank via overnight courier, for delivery to the Bank and its acceptance at
the Bank's offices located in Charlotte, Mecklenburg County, North Carolina.

         DATED the 20th day of September, 1999.


                                        Signature of Borrower's Officer:


                                        /s/ Kenneth J. Matalia
                                        ----------------------------------------
                                        Title:  Assistant Secretary
                                        Print Name: Kenneth J. Matalia


Sworn to and subscribed before me
this 20th day of September, 1999.



/s/ Glenda K. White
- -----------------------------------
Notary Public
Print Name: Glenda K. White
State and County Aforesaid
My Commission Expires: December 1, 1999


[NOTARY SEAL OR STAMP]




   22
                        OUT OF STATE CLOSING AFFIDAVIT

STATE OF NORTH CAROLINA
COUNTY OF  MECKLENBURG

         BEFORE ME, the undersigned, a Notary Public in and for the State of
aforesaid, personally appeared Robert Mauriello, the Vice President of Bank of
America, N.A. (the "Bank"), who, being by me first duly sworn stated:


         1. On or about the date hereof, The Wackenhut Corp. (the "Borrower")
executed a credit or loan agreement and/or attached promissory note (the "Loan
Documents") in the maximum principal amount of $30,000,000.00 in favor of the
Bank, whose applicable offices are located in Charlotte, Mecklenburg County,
North Carolina.

         2. The Borrower has mailed or shipped the Loan Documents to the Bank
via overnight courier, for delivery to the Bank and its acceptance at the Bank's
offices located in Charlotte, Mecklenburg County, North Carolina.

         3. I, as an authorized officer of the Bank, have received a package
containing the Loan Documents and have accepted and executed the Loan Documents
on behalf of the Bank, all of which has taken place in the Bank's offices
located in Charlotte, Mecklenburg County, North Carolina.

         DATED the 21st day of September, 1999.


                                        Signature of Bank's Officer:


                                        /s/ Robert Mauriello
                                        ----------------------------------------
                                        Title:  Vice President
                                        Print Name: Robert Mauriello


Sworn to and subscribed before me
this 21st day of September, 1999.



/s/ Glenda G. Wallace
- -----------------------------------
Notary Public
Print Name: Glenda G. Wallace
State and County Aforesaid
My Commission Expires: 9-28-02


[NOTARY SEAL OR STAMP]




                                      B-5