>> the whole rationale is they need the deterrent to instill the stability of their he regime. that's the calculus. when you float libya you are saying you will give up your nukes and things will not end well for you and your family. that is not the carrot to get them to move on nukes. >> what happens if kim jong-un decides he doesn't want to do this meeting? >> i think that's okay. what the united states should do is first of all, tighten sanctions on north korea. but more importantly, tighten sanctions on china. i always thought that if the meeting with kim goes well, we can just ignore china's abhorrent behavior. the question is what if we don't have the summit? yeah, we have to start imposing costs on the chinese, going after their money laundering banks. we can't let it go unnoticed. because if we do that, we are in a world of hurt with china. not just on north korea, not just on trade, but everything.