In theory, then, the Obama administration ought to announce immediately and loudly that it accepts the results of the election as announced, and is looking forward to working with Ahmedinijad on critical regional and bilateral issues.
This would result in the implosion of any number of crania, probably to the good.
Actually, it probably should be "cranii."
For more detail on the uprising in Iran, see Andrew Sullivan. But be forewarned: he has a policy of showing violent and disturbing images, if they're real and relevant.