the fact that no other sitting u.s. president has met with the north korean leader, former president jimmy carter met with then leader korean leader kim el sun and president clinton met with kim to release prisoners. what are the risks and rewards of such a meeting? >> well, let's start with the rewards. kelly: that's a god place to start. >> i start there because what it does meetly it reduce it -- reds the tension that we will see war given the type of capability that north korea has and what could ensue from such a conflict. that prospect has been reduced and one of the reasons it's been reduced is because it seems at