According to his own account, counterterrorism “tsar” Richard Clarke is informed that President Bush has authorized the military to shoot down threatening aircraft. Clarke had requested that this authorization be given at around 9:36 (see (Between 9:30 a.m. and 9:37 a.m.) September 11, 2001). In his 2004 book Against all Enemies he will state that he receives a response shortly after the time people begin rapidly evacuating from the White House, and while Air Force One is getting ready to take off. This would therefore be sometime between 9:45 and 9:56. He gets a phone call from the Presidential Emergency Operations Center (PEOC) below the White House, where Vice President Dick Cheney and National Security Adviser Condoleezza Rice are located. On the other end is Army Major Mike Fenzel. Fenzel tells Clarke: “Air Force One is getting ready to take off, with some press still on board. He’ll divert to an air base. Fighter escort is authorized. And… tell the Pentagon they have authority from the president to shoot down hostile aircraft, repeat, they have authority to shoot down hostile aircraft.” Clarke replies, “Roger that.” In his recollection of this call, Clarke comments, “I was amazed at the speed of the decisions coming from Cheney and, through him, from Bush.” Clarke then gets the attention of those on the video conference screen for the Pentagon, and informs them, “the president has ordered the use of force against aircraft deemed to be hostile.” [CNN, 9/12/2001; Clarke, 2004, pp. 7-8] This description contradicts several other accounts of when the president gives the shootdown authorization. In late 2003, Clarke tells ABC News he gets the go-ahead from the vice president “within two minutes” after he requested shootdown authorization, meaning therefore around 9:37-9:38 (see (9:38 a.m.) September 11, 2001). [ABC News, 11/29/2003] Some accounts say that Bush gives the authorization later, at shortly after 9:56 (see (Shortly After 9:56 a.m.) September 11, 2001). [Sammon, 2002, pp. 102; Washington Post, 1/27/2002] According to the 9/11 Commission, it is not given until around 10:18 (see 10:18 a.m.-10:20 a.m. September 11, 2001). [9/11 Commission, 7/24/2004, pp. 41]