Thanks!Bahadur, you say the sweetest things sometimes!
Yet another myth. That's what the North Korean regime would like the rest of the world to think (the whole "bad cop" routine)."Stop trying to make sense of them and just accept the fact that they're crazy."
The fact is that they can be quite predictable. But the leadership is not irrational. It wants to survive and it wants to continue to rule (barbarously, I might add).
Its actions are simply those of a desperate and tyrannical regime that are trying its best to make the "best" out of unfavorable circumstances (collapse of the Eastern bloc, economic malaise and resurgent American power post-Vietnam War).
At times unpredictable, but hardly surprising or crazy.