he said the president and kim jong-un have put themselves in boxes. their personal capital is at everytng president trump has banked his presidency on, the disruption theory, the chaos theory. the flattery in order to get somewhere else theory, we're going to see whether it works. this is an ultimate test case of that method of presidency. and i think that will be a really interesting route as we watch to see whether that works. does this disruption work? is it just disruption and chaos? >> christiane amanpour, ambassador yun and jim sciutto. more ahead on the nature of the summit. president trump did say he talked about humanhts. we don't know any of the details of that conversation by eel speak to a human rights expe expert, a correspondent who's been inside north korea 18 times just in recent years.