EXHIBIT 23



                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent public accountants, we hereby consent to the incorporation of our
reports included in this Form 10-K, into the Company's previously filed
Registration Statements on Form S-8, Registration Numbers 33-80417, 333-59441,
333-53753, 333-39159, and 333-02979.


/s/ ARTHUR ANDERSEN LLP
Pittsburgh, Pennsylvania
March 28, 2002