we fear artificial intelligence or not? is it a threat or not? kind of a once and for all determination. whether they make that determination, i don't know. but it's exciting stuff. >> what do you make of this change that we're going to see at the top of the pentagon? there's a sense, at least i have the sense that hagel was a little bit of a fall guy for problems that are much broader in this administration than him. are we going to see big differences with ash carter running the pentagon? >> fall guy, you think? yes, there is that sense. look you know my take on hagel is if you purposely try try to make yourself into a nothing man, you become a nothing man. he wanted to be the quiet leader of the pentagon. not the senator anymore. he was -- he wanted to be that background guy. he said this, he thought it was john kerry's guy to be the voice of the -- of u.s. foreign policy abroad. this was part of a