but at the same time, we're getting this word from south korea of intel swrens suggesting there are some precedent for this. back in '06 and '09, they did nuclear testing right before they tested their rockets and their missiles. is that why there's such grave concern here? >> well, i think it's always coming together and as always with north korea, even though they're letting you see some stuff, they're not letting you see everything. there are intelligence reports now, our own paula newton first to report this, that they might be digging a tunnel that would be the preparation for an underground nuclear test. when you put both pieces together, the possibility of an underground nuclear test, the third one they've tried, this satellite launch, which essentially uses missile technology, long-range missile technology, that's why it's raising so much concern. what improves have they made? what kind of reliability? where will this thing go and what will it mean in asia? countries, japan, south korea, the fill leans, increasingly concerned about what might be headed their way as soon as next w