North Korea and their new toy...

It's the most discussed news of the world in these days: north korea has apparently managed to detonate (or may be fizzle) a test nuclear device... may be, this article argues, they didn't need to do it. They've done it anyway. (duh!) Far from being justified by the need of gathering info, the experiment was a clear political message to the world. Was the message "Don't mess with us"? or was mor elike "Ehy look what we can do, how about giving us some more gifts? Otherwise we'll sell them to AlQaeda(or Hezbollah?) in bundle with our missiles"...