Ballistic missiles, in light of two nuclear tests, knowing that we're going to protect our allies. we are not going to leave south korea standing there with the threat of north korea facing them and not help. >> as an ally that sounds like pragmatic common sense. why is beijing concerned about what would be protection against north korea's missiles? >> i think -- two things going on here. first of all, the thaad his l system has radar that can reach into china and it could degrade their ability to launch a nuclear missile attack on the united states. but i think there's something else and that...