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Last Updated: Sunday, 23 December 2007, 01:22 GMT
CIA 'kept' tapes from 9/11 probe
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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 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.

The memo urges a further investigation into whether the agency acted illegally by withholding the recordings.

The CIA says there was no specific request for the tapes, which reportedly contained images of interrogation techniques including water-boarding, which simulates drowning. The CIA denies torture.

'Clearly obstructed'

The agency filmed the footage in 2002 and erased it in 2005, a year after the commission ended its work.

The commission conducted an internal review earlier this month after the deleted CIA tapes came to light.

A copy of Mr Zelikow's findings, dated 13 December, was obtained by The New York Times.

His memorandum notes the commission asked the CIA in 2003 and 2004 for "documents", "reports" and "information" relating to interrogations.

Water boarding: prisoner bound to a board with feet raised, and cellophane wrapped round his head. Water is poured onto his face and is said to produce a fear of drowning
Cold cell: prisoner made to stand naked in a cold, though not freezing, cell and doused with water
Standing: Prisoners stand for 40 hours and more, shackled to the floor
Belly slap: a hard slap to the stomach with an open hand. This is designed to be painful but not to cause injury
Source: Described to ABC News by un-named CIA agents in 2005

But, the report says, a CIA director replied in 2004 that it had already "produced or made available for review" all relevant material.

Mr Zelikow's seven-page findings conclude "further investigation is needed" to determine if the CIA's withholding of the tapes violated federal law.

It notes that it is illegal to "knowingly and wilfully" withhold or "cover up" a "material fact" from a federal inquiry.

The CIA insisted on Saturday it had gone to great lengths to help the commission, which was set up to investigate al-Qaeda's 11 September 2001 attacks on the US.

The agency's spokesman Mark Mansfield said: "Because it was thought the commission could ask about tapes at some point, they were not destroyed while the commission was active."

But one of the commission chairmen, former Democratic congressman Lee Hamilton, told the New York Times the CIA had "clearly obstructed" the commission's work.

The CIA and the Department of Justice have already launched an inquiry into the erasing of the tapes.

The agency said the footage was deleted to protect the identities of agents and because it was no longer of intelligence value.

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