America shows off warship that buried bin Laden

US 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.

U.S. defense officials were taking measures to ensure the security of the operatives involved in the May 2 assault on a walled fortress in Abbottabad, Pakistan, particularly the Navy SEAL team that killed the world's most wanted terrorist. (AP)