'One of two British explorer ships that vanished in the Arctic more than 160 years ago has been found, Canada's prime minister says. Stephen Harper said it was unclear which ship had been found, but photo evidence confirmed it was one of them. Sir John Franklin led the two ships and 129 men in 1845 to chart the Northwest Passage in the Canadian Arctic. The expedition's disappearance shortly after became one of the great mysteries of the age of Victorian exploration. The Canadian government began searching for Franklin's ships in 2008 as part of a strategy to assert Canada's sovereignty...