Digby points to a report by the Center for Constitutional Rights based on the testimony of three UK citizens released from Gitmo. It describes an organized and systematic regime of psychological and physical torture to break the detainees.
If these charges are true, then this is not a few bad apples, but policy. And the person responsible for that policy is up for re-election soon.
Separately, information about doctors who at least failed to report physical torture and in some cases were complicit in enabling psychological abuse is emerging.