I agree that Iran, for example, is entitled to develop nuclear power for energy purposes.
When the picture turns to nuclear weapons, I also have no problem with that as long as we're talking about measured governments. South Korea and Japan have rights to nuclear weapons too, eh? And that will be recognized, and both of those countries will probably be armed by the US. The arms race that will now ensue will only further harm NK who does not have the economy necessary to compete in this arena. Like Miltiades said, North Korea is in pretty sad shape with a lousy economy, starvation, etc. This will only lead to more starvation for more North Koreans.
As far as "all talk and no action" goes, NK has repeatedly lied and cheated in the process that has led us to this point. They have turned down food for their people in order to obtain nuclear weapons. So it's hard to predict what a lunatic like Kim Jong Il would do given the worsening humanitarian situation he is subjecting his country to.
Any responsible leader hopes for the best, but plans for the worst. It's amusing that there are people out there who only want to plan for the best and hope that the worst doesn't happen. You see folks like this in the professional world and wonder how they are still employed. But this is the first time I've ever heard someone say they don't care if they get nuked. A fascinating way to poke a finger in Bush's eye!
<Quick edit - yep - Bush buggered Iraq up for the same reason I mention above. Planned for the best, and disregarded any mention of more realistic scenarios. This should be avoided, regardless.>