Don't be all that surprised - I think it's a (futile) attempt to repeat the "Why-attack-Iraq-if-Korea-is-so-bad" mantra.
Gather up all the liberal "North Korea is terrible! They should be handled before Iraq!" comments, so that the bastards can be really held to the fire in the summer, after postwar Iraq is stabilized, and we reposition our massive arsenal to handle Evil Axis #2. They will all stream out in favor of keeping Kim Jong il in power and against American military power. We will throw everything they said about North Korea being evil, back into their faces, as we prepare for regime change there, too.
These idiots don't realize what kind of point in the argument they are ceding to us.
Ya, good point. They'll forget all about this when North Korea's turn finally comes. It's just a useful distraction from Iraq for now.