NK possessing nukes is the reason there hasn't been a war in the region for so long. Which gives a "good" model for Iran to follow. I'm not happy that NK has nukes, or that Iran is trying to get them, but you have to admit that while the US exists as it is, they are the only way for a nation to protect itself from constant wars and invasions. I would be willing to bet that Iran getting nukes would paradoxically make the Middle East much safer: the US and their allies would be forced to leave it alone, which in turn would shrink the anti-US sentiment in the long term, which would cut into the ranks of terrorist cells, etc.