From the Guardian, which received the latest batch of documents:

The new logs detail how:

• US authorities failed to investigate hundreds of reports of abuse, torture, rape and even murder by Iraqi police and soldiers whose conduct appears to be systematic and normally unpunished.

• A US helicopter gunship involved in a notorious Baghdad incident had previously killed Iraqi insurgents after they tried to surrender.

• More than 15,000 civilians died in previously unknown incidents. US and UK officials have insisted that no official record of civilian casualties exists but the logs record 66,081 non-combatant deaths out of a total of 109,000 fatalities.

More here.