New details of prison abuse emerge

An unidentified soldier appears to be kneeling on naked detainees in a photo from the Abu Ghraib prison in Iraq. (Photo: Washington Post)

A baton-wielding US soldier, appears to be ordering a naked detainee covered in a brown substance to walk a straight line with his ankles handcuffed.

An unidentified soldier appears to be kneeling on naked detainees in a photo from the Abu Ghraib prison in Iraq. (Photo: Washington Post)

A US soldier in a flak jacket appears to be using both hands to restrain a dog facing an Iraqi detainee in the Abu Ghraib prison. The photo is one of the hundreds of unreleased pictures and videos that display techniques not seen in earlier images of prison abuse. (Photo: Washington Post)

A US soldier with his right arm and fist cocked appears prepared to strike one detainee in a pile of detainees in the Abu Ghraib detention facility outside Baghdad. (Photo: Washington Post)

In what appears to be a hallway, a hooded detainee, seems to be handcuffed in an awkward position atop two boxes. The frame seems to show the prisoner's ankle cuffed to the door handle behind him. (Washington Post photo)