dr. hecker and his team, when the former u.s.irector of the los angeles nuclear weapons laboratory goes to north korea, los alamos, i'm sorry, and sees what he describes as a state of the art uranium enrichment facility, it ought to remind us not to underestimate the technical capabilities of north korea. we've been guilty of doing that in the past, and we just need to be very careful on this point. >> jonathan, let's move to china which is, obviously, a very important factor here in terms of its political influence, in terms of the implementation of sanctions and so on. china itself has a new leader. what do he can and his colleagues think about this situation unfolding before their eyes? >> i think that this test may be, or in this series of events may be different as seen by the chinese both because there is a new leadership in china and that kim jong un and those around him, whoever he may be listening to, have decided to challenge the chinese on the fundamentals. the chinese have tried repeatedly, and and it's a record unble