AL points to the fact that the program has an 84 percent approval rating within Iran:
Bombing that country would, in addition to generating many casualties, significantly strengthen the hand of the hardliners. It would poison public opinion against the West and stifle reform efforts. And on the flipside, if the reformers succeed and the result is a more democratic Iran, there's little reason to think Iran's elected leaders would abandon the country's nuclear program. In functioning democracies, elected leaders tend not to kill programs that are massively popular. To truly embrace democracy in the world, you have to understand that people in other countries will often see things differently than you see them.
The Dish 