A year ago, the media was alight with hysterical warnings about the imminent threat of a Third World War, involving mutually assured nuclear destruction.
Now, suddenly, it seems as though an unfathomable peace is on the cards, with North Korea's young leader, Kim Jong-Un, going on a charm offensive with his South Korean counterparts.
What lies behind this volte-face from the 'Little Rocket Man' in Pyongyang? What concessions does clever Kim expect in return? And was there ever really a danger of a nuclear world war?