[iron81]

"The Diplomatic Security Service has launched an official investigation, a review that will be supported by the Multi-National Forces-Iraq, State Department spokesman Sean McCormack said."

Diplomatic Security Service = State Department
Multi-National Forces-Iraq = Army

Abu-Ghraib was whitewashed until 60 Minutes did an expose. Plus neither or those incidents involved contractors. I could probably find plenty of nasty crap that Blackwater has done, but I remember one video where a contractor (not necessarily Blackwater, I don't remember) was spraying civilians and laughing about it as he drove down a city street.