Those people are clearly crazy. That's what worries me.
I don't think Iran is a threat to anybody because they're smart enough to realize starting a fight with the West would be suicidal. North Korea, on the other hand, may not be smart enough.
The North Koreans may very well be delusional or at least some of them may be. The big question is whether there is a rational element that might step in before things go beyond the point of no return.
I'm not sure what this Kim Jong Un is thinking but things might be getting a little out of hand.
I'm sure the Chinese are jumping all over Un trying to keep him from doing something stupid but it's not clear they have much control over this nut job.
This situation could get tense.