If the Iraqis themselves won't stand together to stop the killing, no one else can and it isn't worth another American life. The Iraqis are going to have to grow up and make a choice.
DB, you don't really understand the situation has little to do with what the Iraqi people want, and please don't talk in generalities like the media would like you to do.
The Iraqi people by in large want to live in peace and quiet, but militias being funded by Iran, Syria, and elsewhere are causing mahem in the country. 98% of the Iraqi public hate al-Qaeda. That doesn't stop them from holding parts of Anbar and killing thousands in Iraq.