The proposal by the U.S. and Russia to hold a diplomatic conference to end the carnage in Syria deserves a less skeptical reaction than it has received. While it will be difficult to get all of the relevant parties to the table in Geneva any time soon, much less to ensure an outcome that will stick, diplomacy is the only game left. As much as one might wish otherwise, every other policy option canvassed so far is wrong in principle, nonviable in practice, unlikely to be effective or bound to increase rather than diminish suffering.