'The tapes are said to show a simulated drowning technique
A leaked memorandum from the former 9/11 commission says it made repeated requests to the CIA for information on the interrogation of al-Qaeda suspects.
But ex-commission executive director [and Bush family friend] Philip Zelikow says the CIA did not hand over tapes that have since come to light, the New York Times reported.
The CIA later erased the footage, which allegedly contains images of abuse.'
