Time lapse of destroyer being launched

China's newest destroyer seen as challenge to Asia rivals

This US navy destroyer escort has become the deepest shipwreck to be discovered, according to explorers.The USS Samuel B Roberts, known as the 'Sammy B', was identified on Wednesday broken into two pieces on a slope at a depth of 6,985m (22,916ft), or about four miles.That puts it 1,400 feet deeper than the USS Johnston, the previous deepest wreck discovered last year in the Philippine Sea, also by American explorer Victor Vescovo, founder of Dallas-based Caladan Oceanic Expeditions.The Sammy B