Examination of the Exon-Florio amendment : focus on Dubai Ports World's acquisition of P&O : hearing before the Committee on Banking, Housing, and Urban Affairs, United States Senate, One Hundred Ninth Congress, second session, on the implementation of the Exon-Florio amendment, focusing on Dubai Ports World acquisition of Peninsular and Oriental Steam Navigation Company, the role of terminal operators, and U.S. Coast Guard actions under the Maritime Transportation Security Act of 2002, March 2, 2006.