This video is called Batle for Haditha.
From a Reuters report on a letter by US General Petraeus in Iraq, in which he admits that torture and killing and injuring of Iraqi civilians by his troops are problems:
The Pentagon survey of ethics, released last week, showed that only 40 percent of marines and 55 percent of U.S. Army soldiers deployed in Iraq said they would report a fellow serviceman for killing or injuring an innocent Iraqi.
This means that half, maybe a lot over half (as soldiers who would report are not always present at such atrocities, and soldiers who themselves might want to report may be intimidated to not do so) of such cases remain unknown even to the military hierarchy.
Let alone to the international media.
Let alone to the public (if media practice self censorship).
Cases of atrocities like the Haditha masacre, now known to the public, may be a very small tip of a very big iceberg.