MSNBC counts the number of endnotes in the 9/11 Commission report that cite detainee interrogations and finds that more than a quarter of them—441 out of over 1,700—do so. It is widely believed that the detainees were tortured while in US custody, and that statements made under torture are unreliable. One of the detainees, alleged 9/11 mastermind Khalid Shaikh Mohammed, whose interrogations are mentioned hundreds of times in the report (see After January 2004), was extensively waterboarded (see Shortly After February 29 or March 1, 2003), and a CIA manager said that up to 90 percent of the information he provided under questioning was unreliable (see August 6, 2007). The endnotes often give the sources of the information contained in the main text. MSNBC comments: “The analysis shows that much of what was reported about the planning and execution of the terror attacks on New York and Washington was derived from the interrogations of high-ranking al-Qaeda operatives. Each had been subjected to ‘enhanced interrogation techniques.’ Some were even subjected to waterboarding.” In addition, many of the endnotes that cite detainee interrogations are for the report’s “most critical chapters”—five, six, and seven—which cover the planning of the attacks and the hijackers’ time in the US. In total, the Commission relied on more than 100 CIA interrogation reports. Its Executive Director Philip Zelikow admits that “quite a bit, if not most” of its information on the 9/11 conspiracy “did come from the interrogations.” Karen Greenberg, director of the Center for Law and Security at New York University’s School of Law, says, “It calls into question how we were willing to use these interrogations to construct the narrative.” [MSNBC, 1/30/2008]