US Republican presidential candidate Senator John McCain (R-AZ) delivers remarks at the US Naval Academy in Annapolis, Maryland, April 2, 2008. McCain spent four years at the U.S. Naval Academy prior to training as a fighter pilot and heading to Vietnam, where his plane was shot down and he spent 5-1/2 years as a prisoner of war. REUTERS/Jason Reed (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)