Southern Avenger: The Wrath of North Korea?

This has been news for maybe the past couple of weeks or so. A bit disconcerting to know that a very closed nation, a nation said in this video to not have the ability to feed its own people, has tested a nuclear weapon. The question to be asked is what does this mean for North Korea?

Is it bragging rights to say that a small nation like NK can produce a nuclear weapon? Is it that NK is merely saber rattling?

I would ask if NK is merely a threat, but I don't think there's any question about that. The North Koreans are a thread either they use the bomb to prove something or they can give it to someone who will use it. I just hope that we can do what we can to keep them from doing anything crazy.

Is engagement with NK the key to this new crisis?