How a Detainee Became An Asset
Sept. 11 Plotter Cooperated After Waterboarding

After enduring the CIA’s harshest interrogation methods and spending more than a year in the agency’s secret prisons, Khalid Sheik Mohammed stood before U.S. intelligence officers in a makeshift lecture hall, leading what they called “terrorist tutorials.”

In 2005 and 2006, the bearded, pudgy man who calls himself the mastermind of the Sept. 11, 2001, attacks discussed a wide variety of subjects, including Greek philosophy and al-Qaeda dogma. In one instance, he scolded a listener for poor note-taking and his inability to recall details of an earlier lecture.

Speaking in English, Mohammed “seemed to relish the opportunity, sometimes for hours on end, to discuss the inner workings of al-Qaeda and the group’s plans, ideology and operatives,” said one of two sources who described the sessions, speaking on the condition of anonymity because much information about detainee confinement remains classified. “He’d even use a chalkboard at times.”

The debate over the effectiveness of subjecting detainees to psychological and physical pressure is in some ways irresolvable, because it is impossible to know whether less coercive methods would have achieved the same result. But for defenders of waterboarding, the evidence is clear: Mohammed cooperated, and to an extraordinary extent, only when his spirit was broken in the month after his capture March 1, 2003, as the inspector general’s report and other documents released this week indicate.