Firstly, I am not a member at DU, I am a former member of the USAF and I served in Korea.
NK is a very small place, a very poor place and their total assets are slim. What they do have is a bunch of troops, infantry and a few launce sites and hardened storage facilities.
If you use air assets to take out the launch facilities, they chances of them rebuilding are very slim.
Perhaps you might want to read a profile before you shoot your big, fat mouth off.
I still think it is idiotic to start a nuke war with a country that has nothing to lose in launching them.