NOTE: There were no hijackings of U.S.-registered carriers from 1991 through
2000. Data are through 2000 and do not include the hijacking of 4 airplanes
by terrorists on Sept. 11, 2001.
SOURCE: U.S. Department of Transportation, Federal Aviation Administration,
Office of Civil Aviation Security, Criminal Acts Against Civil Aviation (Washington,
DC: 2001), also available at http://cas.faa.gov/crimacts/,
as of June 2002.
