AP Photo

All the arguments for providing Syria's rebels with heavy, "game changing" weapons hinge on the outcome of a post-war Syria, and that is an area where Senator McCain and others have been awfully vague. Merely toppling the Assad regime does nothing for America. The resulting chaos could be worse for U.S. interests if al-Qaeda cells flourish and begin attacking regional and international targets, or if another anti-American regime takes hold. If the U.S. can't make the situation better, it's wise not to make it worse.