A number of news reports suggest that information obtained from either Al Qaeda deputy Khalid Sheik Mohammed or Abu Faraj al-Libbi, a former senior al Qaeda officer who was captured in 2005, was the key to finding Bin Laden. Like the al Qaeda figurehead, neither man was found on a battlefield in Afghanistan or Iraq. American intelligence agents tracked al-Libbi's cell phone to Mardan, Pakistan, about 75 miles north of Islamabad. They tipped off Pakistani intelligence agents who picked him up and eventually transferred him to U.S. custody. Mohammed was captured by our ally's security forces in Rawalpindi, Pakistan.
As one might expect, some observers are claiming that the intelligence gleaned from these "high value detainees" is proof that torture works. But that claim isn't supported by what we know so far. According to Newsweek's Evan Thomas, al-Libbi was first interrogated by the FBI, “but when the FBI wanted to use its normal, go-slow methods, the prisoner was turned over to the CIA—who promptly turned him over to the Egyptians.” He was later returned to American custody and interrogated again by the FBI, where former Defense Secretary Donald Rumsfeld insists that he yielded the information under “normal interrogation approaches ...[it was] not harsh treatment and it was not waterboarding.”
But we know that while being tortured by the Egyptians, “al-Libbi talked of plots and agents,” and the information he provided “was used to make the case for war against Iraq.” As Evan Thomas noted, “there was only one problem: al-Libbi later recanted, saying that he had lied to stop the torture.”
Mohammed was also subject to torture. It was under duress that he told interrogators that al Qaeda sleeper cells had "hidden a nuclear bomb in Europe which will unleash a 'nuclear hellstorm' if Osama bin Laden is captured" -- yet more faulty information. He did not reveal the courier's name or information during waterboarding, only providing that information during regular interrogation over four years later.