Here is a journalistic challenge: How does an American news operation get into North Korea, to the heart of Pyongyang, and get exclusive access to an enigmatic leader who is the central figure in a showdown with Washington over nuclear weapons? Easy. Just get a former basketball player who is covered in tattoos to go with you. And before you know it, Dennis Rodman and Kim Jong-un will be clinking glasses and your cameras will be there to cover the story. The company behind the stunt was a media outlet called Vice, and its exploits in Pyongyang - typical of its style - got world-wide coverage.