MANILA, Philippines -- A U.S. Navy destroyer that engaged a superior Japanese fleet in the largest sea battle of World War II in the Philippines has become the deepest wreck to be discovered, according to explorers. The USS Samuel B. Roberts, popularly known as the “Sammy B," was identified on Wednesday broken into two pieces on a slope at a depth of 6,985 meters (22,916 feet). That puts it 426 meters (1,400 feet) deeper than the USS Johnson, the previous deepest wreck discovered last year in the Philippine Sea also by American explorer Victor Vescovo, founder of Dallas-based Caladan Oceanic...