JAMES TARANTO: Events in Iran catch President Obama flat-footed. “Speaking very broadly, there are two possible outcomes in Iran now. The regime may succeed in crushing the opposition, enhancing its own power at the expense of whatever pretense of legitimacy it might have had a week ago. Or it may fail to do so and be weakened or overthrown. The free world has every interest in encouraging the latter outcome, and someone ought to bring the leader of the free world up to speed on the events of the past few days.”