William Burton has a lot of posts up about North Korea. Not sure I agree with everything he says, but the basic point that letting junior get his hands on some nukes is Seriously Seriously Bad because he is the nutcase, or 'irrational actor' that people keep calling Hussein, is right on.
The rather unlikely event of Hussein getting nukes frankly doesn't scare me all that much - not much more than Pakistan and India having nukes does.* Junior having nukes scares the hell out of me.
*Note I'm not comparing the leadership and/or people of any of these countries directly. Just thinking about the likelihood that said countries actually start using their nukes.