A great deal of mistake made when analysing North Korea comes from the fact that they are often treated like a logical co-operating partner. But the opposite is the case, a country that worships it leader, a country that has the potential to be a great economic power house, but chooses poverty because it wont give up on its' unnecessary nuclear weapons is NOT A LOGICAL PARTNER.
The ultimate goal,leadership and pattern of North Korea has never changed and that is to unite the korean peninsula under there own rule. Like a cult, it doesnt matter if this is actually practical or not to them. It doesnt matter if life are lost or not, they will continue to work towards that goal. They wont stop.
SO, it is up to the world to do something that has not being done before and actually take a bold, concrete step to stop it in its tracks now.