By some accounts, Mitchell and Jessen had disrupted and denied KSM’s sleep for a week. After all that abuse, did KSM know what his real memories were anymore? In his book Why Torture Doesn’t Work, neuroscientist Shane O’Mara writes that extended sleep deprivation “might induce some form of surface compliance”—but only at the cost of “long-term structural remodeling of the brain systems that support the very functions that the interrogator wishes to have access to.”
