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9/11: Hijacker says 'we have some planes'

8 September 2011 Last updated at 19:03 BST

Recording of an American 11 hijacker, thought to be Mohamed Atta, saying "we have some planes," and "we are returning to the airport."

The recording was made by the Federal Aviation Administration (F.A.A.) at 08:24 on 11 September 2001.

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