Sounds kind of convenient:

The US military has lost a year’s worth of records describing the Guantanamo confinement of Osama bin Laden’s driver, a prosecutor said at the Yemeni captive’s war court hearing.

Lawyers for the driver, Salim Ahmed Hamdan, asked for the records to support their argument that prolonged isolation and harassment at the Guantanamo prison have mentally impaired him and could affect his ability to aid in his defence against war crimes charges.

“All known records have been produced with the exception of the 2002 Gitmo (A nickname for Guantanamo Bay) records,” one of the prosecutors, Navy Lieutenant Commodore Timothy Stone, told the court. “They can’t find it.”

I would check in the same location as the waterboarding video tapes. It’s a damn good chance you will find them there.