with a vertical. >> yes. >> with the ultimate goal of more of a horizontal flight. they just want to see without getting in too much trouble how high they can go. >> and they were also testing heat shielding. they need to protect the nose cone as it reenters the atmosphere. heat shielding is thought to be the last major technical hurdle for the north koreans to be able to land a nuke in the u.s. so that's why the defense intelligence agency said look, we're no longer talking three or four years before they can hit us with a nuke. we're now talking one year and that's probably about right, given their accelerated testing schedule. >> that's what the u.s. is now moved up the timetable, thinking -- moved it up by a year in terms of nuclear capability. >> so they're saying some time in 2018, they'll be able to hit us with a nuclear weapon on an icbm. >> what does president trump do