One of the chief architects of the CIA's harsh Bush-era interrogation program has admitted in a media interview for the first time that he waterboarded terrorism suspects, including Khalid Sheikh Mohammed, the suspected mastermind of the Sept. 11, 2001, attacks.

James Mitchell, a former U.S. Air Force psychologist, confirmed some of the specific details in a Senate committee report released last week and defended the practices, saying that valuable intelligence was obtained despite investigators' conclusion to the contrary.

"Yes, I waterboarded KSM," Mitchell told the Internet-based global television news outlet VICE News, referring to Mohammed, whose interrogation was described in brutal detail in the report and which has been deemed torture by human rights groups.