any assertion that they had identified and tracked Atta, and this suggests a cover-up by the IG of Able Danger's findings. Witnesses reported telling Philip Zelikow, executive director of the 9/11 Commission, that Able Danger had identified Atta well before the 9/11 attacks, but Zelikow showed no interest in their testimony. Lt. Col Tony Shaffer also reported that the DOD has retaliated against him for speaking out publicly about the IG report's distortions. Movie The independent film Able Danger was released in 2008. The screenplay written by Paul Krik centers around a Brooklyn, New York coffee shop owner who receives a disk proving a tie between the CIA and the 9/11 attacks. Book Operation Dark Heart by Anthony A. Shaffer, released in September 2010, includes memories of his time reporting to the 9/11 commission about Able Danger's findings. The 10,000 copies of the books have not been released yet. The DOD's Defense Intelligence Agency reviewers identified more than 200 passages suspected of containing classified information. "Specifically, the DIA wanted references to a meeting between Lt. Col. Tony Shaffer, the book's author, and the executive director of the 9/11 Commission, Philip Zelikow, removed". DOD took the highly unusual step of purchasing all available copies of Shaffer's book at a cost of $47,000 and destroying them to deny the public the ability to read the book. See also 9/11 commission report Criticisms of the 9/11 Commission Report September 11, 2001 attacks Bin Laden Issue Station (The CIA's bin Laden tracking unit, 1996–2005) War games in progress on September 11, 2001 Collapse of the World Trade Center 9/11 conspiracy theories References September 11 attacks Criticism of the official accounts of the September 11 attacks Applied data mining Defense Intelligence Agency Operations of United States government agencies Military planning Organizations established in 1999 1999 establishments in the United States