North Korea threatens pre-emptive nuclear strike
North Korea says it is "on the brink of war" because of the U.S. In an interview with CBS News, one of the country's top officials accused the Trump administration of wanting to "annihilate" North Korea. Tensions are rising as the North gets ready to celebrate the day the country's founder, Kim Il Sung, was born 105 years ago. Ben Tracy reports from Pyongyang.