I agree with sirkill and a bit with you as well. It could be an entire generation (which may actually be worth it in the long haul) For these people to be integrated into our technological customs and education.

This could also reduce fire power for smaller nations that were supplied by NK as well as reducing the drug trade. How else do they get that much money when they hardly do a damn thing for the rest of the world.

EDIT: We can't take immediate action because they're still at war with our allies SK, talking and finding a medium in which all are "happy" or atleast get along is pretty much the only way to do it.