A new Senate report says the physical and mental abuse of detainees in Iraq, Afghanistan and Guantanamo Bay Naval Base was the direct result of Bush administration policies and should not be blamed on guards and interrogators.

The report from the Senate Armed Services Committee is the result of a two-year investigation. It directly links President Bush's policies after the 9/11 terrorist attacks, legal memos on torture and interrogation rule changes with the abuse that was photographed at Abu Ghraib prison in Iraq four years ago.

The report says administration officials publicly blamed the abuses on low-level soldiers but called that ''both unconscionable and false.''

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