Colin Powell, the chairman of the Joint Chiefs of Staff, recommends that the number of aircraft dedicated to defending US airspace be reduced, a recommendation echoed by the General Accounting Office (GAO) over a year later. The continental air defense mission, carried out by the North American Aerospace Defense Command (NORAD), was developed during the Cold War to protect against any Soviet bombers that might try to attack the US via the North Pole. In 1960, NORAD had about 1,200 fighter jets dedicated to this task, but now its US portion comprises 180 Air National Guard fighters, located in 10 units and 14 alert sites around the US. In February 1993, Powell issues a report in which he suggests that, due to the former Soviet Union no longer posing a significant threat, the air defense mission could be transferred to existing general-purpose combat and training forces. In May 1994, the GAO issues a report agreeing with Powell, saying that a “dedicated continental air defense force is no longer needed.” The report also says: “NORAD plans to reduce the number of alert sites in the continental United States to 14 and provide 28 aircraft for the day-to-day peacetime air sovereignty mission. Each alert site will have two fighters, and their crews will be on 24-hour duty and ready to scramble within five minutes.” [US Department of Defense, 2/12/1993; General Accounting Office, 5/3/1994] NORAD will play a key role in responding to the hijackings on 9/11. By then, it will have just 14 fighters available around the US on “alert”—on the runway, fueled, and ready to take off within minutes of being ordered into the air. [Code One Magazine, 1/2002; 9/11 Commission, 7/24/2004, pp. 17]