joining me is michio kaku, theoretical fizz zit and best-selling author. also generalmark hertling and ambassador james woolsey, former director of the central intelligence agency. president trump doubled down on his rant against north korea at his rally in alabama. take a look at this. >> now he's talking about a massive weapon exploding over the ocean. pacific ocean. which causes tremendous, tremendous calamity. where that plume goes, so goes cancer. so goes tremendous problems. and i want to tell you something, and i'm sure he's listening because he watches every word. maybe something gets worked, and maybe it doesn't. but i can tell you one thing. you are protected. okay? you are protected. nobody's going to mess with our people. [ applause ] nobody is going to play games. nobody is going to put our people in that kind of danger. >> jim, how do you think north koreans will react? >> well, they would react negatively no matter what he says, but i do think he would be better advised to speak softly and carry a big stick. the things that are going to happ