1. 2. U.S., Department of Transportation, Federal Aviation Administration, “U.S. and Foreign Registered Aircraft Hijackings Statistics 1961 to Present,” updated 1 Jan. 1986, pp. 1-134.
2. 4. U.S., Department of Transportation, Federal Aviation Administration, Semiannual Report to Congress on the Effectiveness of the Civil Aviation Program: January 1-June 30, 1986 (Washington, DC: Department of Transportation, 1986), pp. 3-4.
3. 6. Air Transport Association, Protecting Air Transportation from Hijacking and Sabotage (Washington, DC: Air Transport Association, 1985), p. 1.
4. 7. “Miami Airport Security Scores High,” Tampa Tribune, 23 June 1987.