This February 2017 photo provided by his lawyers shows Khalid Shaikh Mohammad in Guantanamo Bay prison in Cuba. (Derek Poteet via Associated Press_
The psychologist who led the CIA's harsh interrogation program after 9/11 was unapologetic about his role in testimony Tuesday before a military commission that is preparing to try Khalid Shaikh Mohammed, the self-proclaimed mastermind of the attacks.
"Let me tell you just so you know," said James Mitchell, who personally waterboarded Mohammed at a "black site," or secret prison, in Poland. "If it were today, I would do it again."