“A footnote in the May 30, 2005 memo by Steven Bradbury, then acting head of the DOJ’s [Department of Justice’s] Office of Legal Counsel, states that, ‘According to the [CIA] IG [Inspector General’s] Report, the CIA, at least initially, could not always distinguish detainees who had information but were successfully resisting interrogation from those who did not actually have information. …On at least one occasion, this may have resulted in what might be deemed in retrospect to have been the unnecessary use of enhanced techniques. On that occasion, although the on-scene interrogation team judged [al Qaeda operative Abu] Zubaydah to be compliant, elements within CIA headquarters still believed he was withholding information. …At the direction of CIA Headquarters, interrogators therefore used the waterboard one more time on Zubaydah.’ “
– Mark Thompson and Bobby Ghosh, “Did Waterboarding Prevent Terrorism Attacks?,” Time, April 21, 2009