By placing the burden for punishing Iran on the nebulous “international community,” Obama is signaling that under his leadership, America does not view operational plans to attack US interests on American soil as something that America should deal with.
In Iran’s case, the “international community” means Russia and China. The two UN Security Council-veto-wielding regimes have collaborated with Iran on its illicit activities generally and its development of nuclear weapons and ballistic missiles specifically. Russia and China have blocked all serious sanctions against Iran in the UN Security Council. Their active defense of Iran at the Security Council renders it a foregone conclusion that the UN will never authorize military force to be used against Iran’s nuclear installations.
Since Russia and China prefer to see Iran acquire nuclear weapons than authorize any UN measure that could prevent or slow down this development, it is hard to imagine either government suddenly agreeing to isolate Iran just because it planned to kill the Saudi ambassador and blow up a couple of foreign embassies in Washington.