Hayden went on to explain that the only other three techniques still used then were playing loud music, keeping lights on all day and sleep deprivation. He didn't mention that sleep deprivation was accomplished by hanging prisoners from ceiling hooks.
Hayden thought he absolutely nailed it. But according to the book, "At least one of the president-elect's advisors, on the other hand, felt like he'd just stepped off the set of a Dr. Strangelove remake.