VDH:

There have been wild reports that the United States is considering a “bloody nose” preemptive attack of some sort on North Korea’s nuclear arsenal. Such rumors are unlikely to prove true. Preemptive attacks usually are based on the idea that things will so worsen that hitting first is the only chance to decapitate a regime before it can do greater damage.

But in the struggle between Pyongyang and Washington, who really has gotten the upper hand?