An explanation for why the Bush administration changed course on Iran

Bob Baer, a retired CIA officer who has been deeply sceptical of the Bush administration’s approach to the world, has an interesting take on the whole Iran NIE business: 

“The real story behind this NIE is that the Bush Administration has finally concluded Iran is a bridge too far. With Iranian-backed Shi'a groups behaving themselves, things are looking up in Iraq. In Lebanon, the anti-Syrian coalition and pro-Syrian coalition, which includes Iran's surrogate Hizballah, reportedly have settled on a compromise candidate, the army commander General Michel Suleiman. Bombing Iran now would upset the fragile balance in these two countries. Not to mention that Hizballah has threatened to shell Israel if we as much as touch a hair on Iran's head.
 
Then there are the Gulf Arabs. For the last year and a half, ever since the Bush Administration started to hint that it might hit Iran, they have been sending emissaries to Tehran to assure the Iranians they're not going to help the United States. But in private, the Gulf Arabs have been reminding Washington that Iran is a rabid dog: Don't even think about kicking it, the Arabs tell us. If you have to do something, shoot it dead. Which is something the United States can't do.

So how far is Iran from a nuke? The new NIE says 10 to 15 years, maybe. But that's a wild guess. The truth is that Iran is a black hole, and it's entirely conceivable Iran could build a bomb and we wouldn't know until they tested it.”