This might be what the world needs, actually, with regard to the recession especially. Not a nuclear war of course, just some kind of agitated competition; it is literally the sort of thing that puts men on the Moon. That aformentioned feat is ultimately of secondary importance however — the lesson is that war has a way of inducing technological progress, in recent centuries, and apparently of inspiring whole generations of inventors and scientists... and if we have no other cause for this beside the threat of our deaths, as it were, then so be it, I suppose. I would say that the value of such problems occuring to a society is something that should be respected and understood, but if it were, we wouldn't have need of them.
This all said, the power disparity between North Korea and the United States is far too great for actual 'competition'... unfortunate, perhaps.