north korea stated it is in the final stages of developing a nuclear weapon capable of reaching parts of the u.s. it won't happen! well, it looks like it's going to happen unless something dramatic is done and quickly to stop it. you wrote a letter to the president urging him to engage in talks with north korea, which kim jong-un said he doesn't want to do. what's left here besides military confrontation? >> well, i think we need some new approaches in diplomacy and sanctions. i would continue the military exercises with south korea. i would increase them. i would continue the cyber efforts to try to degrade their missile and nuclear capability. i think their new kind of sanctions we're looking at at the un, hopefully china and russia won't veto them involving chinese banks squeezing the north korean leadership under the bush administration that seemed to work. but we took those off.