Jon Rauch is, as always, thinking realistically and imaginatively. In my view, an aggressive U.S. domestic effort to move away from oil-addiction toward biofuels would be one of the most effective weapons against Ahmadinejad we could deploy. And only a serious increase in gas taxes will do the trick. Hence what amounts to Bush's appeasement of Iran: until he tackles our energy policy and upsets his big oil base, he's enabling Islamist terror. Olivier Roy's essay of a couple weeks back is also worth re-reading.