i think that is bluster.
what can pyongyang really do militarily? any move it makes is going to bring all kinds of bad things down on its head and the dear leader knows beneath his bouffant that many elements in the international community would like to see him gone. except perhaps for south korea, which has long seemed to be more afraid of huge population migrations north to south than of the political consequences of pyongyang's actions.
what you are looking it, it seems to me, is a game of diplomatic chicken.
the problem for the international community--and not for the united states, which is not in a position to do very much except reciprocal saber rattling bluster---is simply how to stare down the dear leader in the short run, and how to legitimate the inevitable negociations that will follow.
mojo: so why is that that you roll so immediately toward pushing buttons?
is it because you are fairly sure that it will be only other people who are affected? or do you just want to see better resolution picture than this:
http://www.astro.virginia.edu/class/...-romeo2-ex.jpg