Quite where we go from here, I don’t know (although I do know that it is not as straightforward as some are suggesting), but what I do know is that the Iranians have been given fifteen new pawns to toy with. I might be wrong, but it seems pretty obvious that these fifteen were not in much of a position to fight back. That raises plenty of troubling questions in itself, but it does seem very clear that the rules of engagement *do* need to change. And they need to do so now. And, yes, that also needs to be announced now. Avoiding unnecessary confrontation remains essential, but that is not the same as avoiding necessary deterrence.