Iran's government forbids certain parties from running in its elections. Presumably, these are parties of secular moderates and the people in them are very dissatisfied with Iran's current regime. After we knock out Iran's nuclear facilities, I think that the CIA (perhaps Mossad would be involved as well) should, by covert aid and infiltration, back a coup to bring down Iran's current government and set up those secular moderates.

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"I am a Tory Anarchist. I should like every one to go about doing just as he pleased- short of altering any of the things to which I have grown accustomed." (Max Beerbohm)