Plenty vulnerable, it appears. This piece in tomorrow's NYT is intriguing. Put it up against Ahmadinejad's failure to win strong popular backing in recent elections, the pro-American stance of many Iranians, and the success of the civilized world in unifying around economic sanctions, and we may have real leverage over the regime. Persia and America are not natural enemies. With respect to the Arab Muslim world, they are natural allies. The great challenge of the next few years is detaching Persia's poisonous regime from the people it purports to represent.