More trouble in Iraq

More horrific violence coming out of Iraq this week, it's the highest death toll from violence between the two major sects of Islam. Shiite militia members took a large number of sunnis and burned them alive. Here's the worst part: Iraqi soldiers stood nearby and watched as these militia members torched human beings. This leads to the big question: is the US presence in Iraq actually doing any good in the area? It seems to a lot of people like the US invasion has lead to a lot more harm than good. Is this just the struggles of a nation that's recently achieved freedom, or violence brought on by the US's removal of a the keystone that held the country together. I'm in no way supporting Saddam, but it seems like things get worse on a day to day basis over there.