Another North Korea famine?

Nuclear weapons can change your perspective. Here we are, chewing over the rights and wrongs of a coercive humanitarian intervention in Burma, while North Korea, apparently, inches towards famine. Yet in the latter case, Arms Control Wonk gravely (and correctly) warns that:

The United States and North Korea’s neighbors should do whatever they can to stave off this crisis, first and foremost for humanitarian reasons, but also because a widespread famine in North Korea could make the government behave in unpredictable ways. [Emphasis added.]

It's safe to assume that the phrase 'whatever they can' does not include an armed intervention in North Korea's humanitarian crisis. Amazing the difference a few kilos of weapons-grade plutonium can make.