What can the US do with Iran?

Rumors were plentiful in Washington last week that a military strike on Iran was a possibility after President Mahmoud Ahmadinejad announced that his country had succeeded in enriching uranium, a necessary first step in producing a nuclear weapon. According to a very reliable source who spoke to me on condition of anonymity, a military strike on Iran was -- or maybe still is -- in the offing, as was reported by Sy Hirsch of the New Yorker.