We need to use every diplomatic tool we have to shame Assad, his wife, Asma, his murderous brother Maher and every member of his cabinet or military whom we can identify as being involved in this gas attack. We need to bring their names before the United Nations Security Council for condemnation. We need to haul them before the International Criminal Court. We need to make them famous. We need to metaphorically put their pictures up in every post office in the world as people wanted for crimes against humanity.

Yes, there’s little chance of them being brought to justice now, but do not underestimate how much of a deterrent it can be for the world community to put the mark of Cain on their foreheads so they know that they and their families can never again travel anywhere except to North Korea, Iran and Vladimir Putin’s dacha. It might even lead some of Assad’s supporters to want to get rid of him and seek a political deal.

When we alone just bomb Syria to defend “our” red line, we turn the rest of the world into spectators — many of whom will root against us. When we shame the people who perpetrated this poison gas attack, we can summon the rest of the world, maybe even inspire them, to join us in redrawing this red line, as a moral line and, therefore, a global line. It is easy for Putin, China and Iran to denounce American bombing, but much harder for them to defend Syrian use of weapons of mass destruction, so let’s force them to choose. Best of all, a moral response — a shaming — can be an unlimited response, not a limited one.