What is the most shocking about the Iranian bomb is that it is fully within the power of the American citizenry to prevent it. Unfortunately, we have craven leaders who are unwilling to ask sacrifice of the people, and perhaps an equally craven citizenry unwilling to take the steps.
Here is how.
Iran's entire economy is based on the high-price of oil, just like a number of other problematic regimes around the world. The US needs to phase in a $1.80 gas tax, 10 cents a month, over the next 18 months. The money from the tax will be gathered and distributed equally to all American citizens in a retirement account entirely under their control, independent of the government. This will therefore create a double incentive for people to conserve fuel.
The result of this program is the world price of oil, which functions based on forward looking predictions of supply and demand, will plummet. As a result the Iranian regime, which is currently only barely economically viable, will be unable to maintain its nuclear program. Likewise, authoritarian regimes from Russia to Venezuela will have to look inward since they will no longer have the petrol crutch.
It will never happen and no American politician will even ever propose it. Thus we are left in the unique position in history of a nation supplying the cash to our enemies so that they can pay for bombs and bullets.