Yes, and it would start the largest mobilization in human history as we struck back with our carriers and boomers. The USA would put on it's shiite-kickin' boots and wade on in...
That would only be the case if we have direct linking evidence that Iran sponsored the attack. And even then there would be those chickens.... in congress who would still oppose it.
But if we dont all wake up and smell the coffee we will be slow to react with decisive action which will do nothing but embolden these loons.
Not if Congress was involved. Or a Rat - we would just apologize and try to figure out why we had made them not like us.