Iran refuses to relent in developing nuclear technology, despite U.N. sanctions. Rumors persist that Israel is drawing up plans for military strikes. Neither the emboldened Iranian president Mahmoud Ahmadinejad nor the embattled President Bush has relented in his war of words. How did we get here? Iran expert Ali Ansari sets the current crisis in the context of a long history of mutual antagonism. From the overthrow of Mosaddeq in 1953 to the hostage crisis in 1979 and, more recently, the Gulf War and the War in Iraq, both Iranian and American politicians have forged conflicting narratives about an "evil empire" lying half a world away-resulting in a mutual mistrust that may ultimately lead to war.

An expert on U.S.-Iranian relations explains the past, present, and possible future of the current American standoff with Iran.