Well, we could just let the Sunnis and Shia have at it. Of course they'd kill just about everybody in the region. That's really the only option if we pull completely out of the region. I don't think anybody has the stomach for that either.
And yeah, it sucks when civilians get killed. Guess what? It's not called war for no reason. I have a buddy with a permanent limp and more metal in his legs than the Terminator. He's one of the few actually cool Hippies. And even he understands that either we pull out and let the entire region go up in flames or we do something. And yes before somebody comes along and says "Well then you go" - fine by me. I can shoot, move and communicate. I ain't no special ops tactical ninja and never will be. But I'd go. Fuck it, it would be better than sitting behind a computer every day.