Is a Coup d'Etat Possible?

I've long wondered what might happen in the US political world (apart from the moral issue and international opinion) if the Bush Administration committed to anything other than limited airstrikes on Iran - that is, if they used nuclear weapons or attempted to invade. There is a lot of disgruntlement in the military, both retired and active. We hear from the retired military people because they're more at liberty to speak publicly and openly. But there are good signs that the resentment and mistrust of the administration for its debacle in Iraq and general incompetence runs deep. Rodger today cites more evidence of this "revolt."

With plans for an attack on Iran in place and deployment happening while we speak, we have to wonder to what extent the administration would attempt to make good on their threatening moves. Given the overcommitment in Iraq and Afghanistan already, an attack on Iran would be folly. It would be folly for a number of other reasons as well, but this particular one could lead to more than just a retired generals' revolt. These are, after all, people who retired so that they could speak publicly. What would be the next step? Is a coup d'état possible in the US?

Could this situation, for instance, play the role of flashpoint?

A new Middle East war is in the offing. DEBKAfile’s exclusive military sources in Iraq and sources in Iran reveal that Turkish and Iranian air units as well as armored, paratroop, special operations and artillery forces are poised for an imminent coordinated invasion of the northern Iraqi autonomous province of Kurdistan.

Our sources pinpoint the target of the combined Iranian-Turkish offensive as the Quandil Mountains (see picture), where some 5,000 Kurdish rebels from Turkey and Iran, members of the PKK and PJAK respectively, are holed up. Iranian and Turkish assault troops are already deployed 7-8 km deep inside Iraqi territory.

UPDATE:

More October Surprise conspiracy news:

Just a 'matter of time' for bin Laden to face justice: Bush