It wouldn't shut them up. They would quietly be happy that the U.S. got hit again. Perhaps not happy about people being killed, but definitely happy it happened to the evil Bush Administration. They'd lie low for a while, then be right back with their inane ramblings.
The words "sound" and "fury" come to mind along with something like "signifying nothing". I think it's time for this "poor player" to get off the stage.