[SONNENSCHEIN NATH & ROSENTHAL LLP LETTERHEAD] Marc Salle 816.460.2555 msalle@sonnenschein.com VIA EDGAR AND FEDERAL EXPRESS December 19, 2007 Daniel Morris, Esq. Attorney - Advisor Mail Stop 3561 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Comment Letter dated December 10, 2007 Issued to Kansas City Southern Definitive 14A Filed March 30, 2007 File No. 001-04717 Dear Mr. Morris: We serve as counsel to Kansas City Southern ("KCS") and are in receipt of a copy of your comment letter dated December 10, 2007 addressed to Mr. Michael R. Haverty, Chief Executive Officer of KCS, with regard to the above-referenced proxy statement. We note that the letter requests a response by December 21, 2007. In order to give it time to discuss its proposed responses with the compensation committee, KCS respectfully requests an extension until January 11, 2008, in which to respond to your comments. If you will recall, we spoke by telephone yesterday with regard to KCS's extension request. You were kind enough to grant that request, conditioned upon filing of this letter. We appreciate your assistance and the comments raised in your letter. Thank you very much. Best regards, /s/ Marc Salle Marc Salle cc: Brian P. Banks, Esq. John F. Marvin, Esq.