As I said, Teribus, we are agreed that unilateral attack by the USA wold be very stupid. I very much hope that there is someone saying those things in the White House, and being listened to. Maybe Colin Powell. Maybe Tony Blair.
But stupid thinks happen. The Bay of Pigs was pretty stupid...Vietnam...Saddam's occupation of Kuwait...the Falkland/Malvinas affair... and so on and so forth.