house correspondent for "the new york times" who co-authored that report with glenn flush and josh letterman, just back from traveling with secretary of state rex tillerson. peter baker, i want to read something else from your piece. because when it hit, it took us all by surprise. these were the questions we were asking you at this hour yesterday and you have them answered in less than 24 hours but you write among those taken by surprise was john kelly the retired four star general who has just taken over as white house chief of staff and has been with the president at his golf club in bedminster, new jersey, for his working vacation. stunning to me that the white house chief of staff didn't see word for word verbatim exactly what the president of the united states was going to say when he drew a red line for north korea. >> yeah. that's exactly right. they knew he'd talk about this obviously. they knew that this was an issue that reporters would almost certainly ask a question about and they did. and they knew the tone he'd take. they understood he would be tough. they didn't know he'd use

thank you. >>> i want to bring in medal of honor recipient colonel jack jacobs josh letterman and sarahalk about this region. courtney laid out with what's up with guam. but seoul, 25 million people, bigger than new york city. essentially the distance from washington to baltimore when you look at the greater tokyo area with 38 million people. basically double new york city. so, how do military operations unfold if they were to unfold without putting hundreds of thousands, if not millions of civilians in the croshairs in the process? >> we have a couple of ways. early warning satellites. we have sea-based early warning and ground-based early warning. not perfect, but we could get an early warning. it's complicated by the fact that north korea has mobile launchers now. we have high altitude, anti-missile capability. we don't have enough of it. they're not perfect either. we need to have more of it. we need to field more of them and they have to be better. but they're pretty good, too. we have a very effective offensive cybercapability and we're going to use that, too. >> when you look mor