North Korea is digging again

Recent satellite images show North Korea is digging a new underground tunnel in what appears to be preparation for a third nuclear test. The Associated Press reports South Korean intelligence officials say the excavation at North Korea's northeast Punggye-ri site, where nuclear tests were conducted in 2006 and 2009, is in its final stages. This new development comes as North Korea prepares to launch a long-range rocket that Washington and others say is a cover for testing missile technology that could be used to fire on the United States.