troops that go into south korea fo this training? are they just going t stop all of it poppy. >> barbara, inow you clarifiedf if south koreaven knew that this was going to happen. i also want to ask you about what the president repeated a lot this morning in the press conference, he talked about the fact that chairman kim had agreed to destroy what the president calls a major missile engine testing site. and he says that agreement to destroy that missile testing site is not in the framework on paper, but that it is a big deal. is it? is it a win for the u.s.? >> reporter: well, we will have to see, i think. the u.s. position is irreversible denuclearization, irreversible. that is a pretty tough standard can tak ap a missile test stand, for example, rip up the concrete pad, take out all the instrumentation, destroy what equipment is left behind.