Action on Iran?

It seems the Bush Administration's finally taking some action on Iran's nuclear program. I don't think that sanctions is necessarily enough to affect Iran's progress; sanctions are notoriously slow acting, and by most intelligence estimates Iran is 2-3 years away from building a bomb. Undoubtedly, however, this action is immeasurably better than Kerry's proposal to accede to the existence of an Iranian nuclear program and to supply them with fuel.