northA volcano responsible for one of the most violent eruptions in history is showing signs of life. Scientists know little about Mount Paektu because most of the mountain lies in North Korea, one of the world’s most secretive countries. But for the first time, Western scientists have been allowed to study this sleeping giant, given extraordinary access to determine if — or when — it could wake up, reports CBS News correspondent Seth Doane. “It was quite a special experience the first time,” said British vulcanologist James Hammond. “Very much a voyage into the unknown.”  For Hammond and Clive Oppenheimer, a professor of vulcanology at Cambridge University, traveling to Mount Paektu was the opportunity of a lifetime. “This is such a big volcano that we know very little about,” Hammond said. In an unprecedented move, the two were seemingly chosen at random and invited by the reclusive government in Pyongyang, through a series of intermediaries, to work with local scientists after small earthquakes beneath the volcano stirred fears it could erupt. Full Story