In an op-ed published by the New York Times, former 9/11 Commission chairman Tom Kean and vice-chairman Lee Hamilton write that their 9/11 inquiry was “obstructed” by the CIA, which failed to provide them with videotapes of detainee interrogations. The White House also knew of the videotapes’ existence but failed to inform the Commission, which had repeatedly asked for all material related to detainee interrogations and was unhappy with what the CIA gave it (see Summer 2003-January 2004, Summer 2003, November 5, 2003-January 2004, and After January 2004). Kean and Hamilton write that the CIA “failed to respond to our lawful requests for information about the 9/11 plot. Those who knew about those videotapes—and did not tell us about them—obstructed our investigation. There could have been absolutely no doubt in the mind of anyone at the CIA—or the White House—of the commission’s interest in any and all information related to Qaeda detainees involved in the 9/11 plot. Yet no one in the administration ever told the commission of the existence of videotapes of detainee interrogations.” [New York Times, 1/2/2008]