On A More Serious Note: The Problem with Iran

I just finished reading a long but extremely written essay about Iran by Mark Steyn. Given the insanity of the current regime over there, it's clear what should be done but should the U.S. or Israel or Britain or anyone else do it, they will be condemned by the usual defeatist crowd. Iran right now parallels Nazi Germany in the early 1930's and yet I fear that we are about to make the same mistakes all over again. This time however the Nuts Have Nukes so the consequence of doing nothing will be far, far worse.