Even if the U.S. talk about military options is exaggerated or wildly speculative . . . Iran has to be aware that it's pushing the international community to take some action.

The current administration is not one to announce large-scale troop reductions.

This (Bush's pledge) is a landmark bit of phrasing which I am sure was at least partly calculated.

This is a long-term proposition, and I would expect the next U.S. administration to have forces inside Iraq at a fairly large number for some years to come.

The next US administration will have forces in Iraq and a fairly large number for some years to come.

Iranian leaders have said some outrageous things and yet, however outrageous, the country is too big to ignore, and the problem is too complex to settle easily. Certainly, walking away from Iran doesn't settle it.