Iran versus North Korea

"Administration officials would never admit it, but the main reason for their being tougher on Iran than North Korea seems tied to American domestic politics as much as or more than anything else, specifically the standing of Israel and oil versus Korea and Japan." "In American politics, however, Israel and oil count for much, much more. It's notable that President Obama made his strongest pronouncements about employing force to stop Iranian nukes at the annual meeting of AIPAC, the very potent group of American-Jewish backers of Israel."