** FILE ** In this Jan. 22, 2013, photo released by the Philippine Coast Guard, coast guard divers approach the USS Guardian, a U.S. Navy minesweeper, to assess the situation after it ran aground last week off Tubbataha Reef, a World Heritage Site in the Sulu Sea, 640 kilometers (400 miles) southwest of Manila, Philippines. (AP Photo/Philippine Coast Guard)

Photo by: Uncredited

** FILE ** In this Jan. 22, 2013, photo released by the Philippine Coast Guard, coast guard divers approach the USS Guardian, a U.S. Navy minesweeper, to assess the situation after it ran aground last week off Tubbataha Reef, a World Heritage Site in the Sulu Sea, 640 kilometers (400 miles) southwest of Manila, Philippines. (AP Photo/Philippine Coast Guard)