Have other south korea is our troops in south korea. when we are talking about nukes, we're talking about denuclearization of north korea's program. this is insane. after singapore we don't even have an agreed definition. >> definition of nuclear independence. >> is it possible that could come out of this? >> well, i don't even think that's really possible, because north korea made it very explicit in their editorial by what they mean by denuclearization. they mean u.s. troop presence in south korea, they mean u.s. extended nuclear umbrella we have over south korea. so are we willing to withdr...