sam, what do you make of where we are after this historic photo-op? >> well, north korea is certainly acting like a normalized nuclear power. we think back to when obama left office and north korea was a pariah state. their nuclear program was a focus of sanctions and the focus of a lot of attention with respect to denuclearization and trying to get them to give up the weapons. by taking 20 small steps into north korea, president trump really took a giant leap backward when it comes to a nonproliferation agenda. he has solidified north korea as a normalized nuclear state. and he has moved the goalpost on the goal that he set for north korea which was denuclearization. we are at a point now where in the short term, security is better. missiles aren't flying and nuclear tests aren't happening. but when north korea takes a step back and thinks about whether it has to denuclearize