U.S. aircraft carrier USS Carl Vinson

U.S. aircraft carrier USS Carl Vinson, right, is anchored off Manila Bay as it begins its four-day port call Sunday May 15, 2011 with three other warships in the Philippines. U.S. officials welcomed visitors Sunday to the USS Carl Vinson warship, from which Osama bin Laden’s body was buried at sea, but did not discuss the ultra-secretive attack that killed him, reflecting America’s concern over possible retaliation. At left is USS Shiloh, a cruiser equipped with Aegis technology. (Foto:Bullit Marquez/AP/dapd)