Why Do We Laugh at North Korea but Fear Iran?

The Atlantic    "A man starves his own people and threatens to start a nuclear war, and Americans laugh. What a bizarre thing to do."
...."Of course, North Korea already has nuclear weapons, and Iran doesn't. One might think that the country with a bomb - with whom we are still technically at war, no less -- would be more of a threat than the country without one, but at least judging by the way we talk about them, that's not the case. Why do we consider North Korea to be such a joke?
....

"Iran has this patina, at least, of this super-religious extreme folks that might actually not care if they were wiped out in response to one of their attacks. There are some folks in Iran who ... might actually care less ... than the North Koreans do, because the North Koreans care only about regime-serving." "Unlike Iran, where leaders value religion more than the state, North Korea cares too much about its own survival to ever actually use its bomb."
Well, true; TW has published Norktoons, but not Irantoons. Other than this:

And this:

http://www.conservativedailynews.com/