this potential escalation? >> there is an air defense umbrella over both japan and south korea right now, anderson, that would prevent any kind of ballistic missiles, for the most part, getting in. that's not 100% insurance, that's sort of hike what goesli goes on during israel. they can get most of them, but every once in a while one falls through. going back to what secretary mattis and general clapper said, it is dangerous in seoul, south korea. it's a packed city of 10.5 million people with over 100,000 americans, as well. any kind of disaster of an explosion in that city would cause an unbelievable human trauma and also cause medical issues across the board and it would be very tough to fight it. so yeah, they're prepared for this kind of thing. they've been prepared for a very long time. but that doesn't make it easier, and it's not something they want