Like every other organization and individual in the United States, the FBI has struggled to comprehend the events of September 11, 2001. Apart from investigating the crime scenes in New York City (the World Trade Center); Somerset County, Pennsylvania; and Arlington County, Virginia (the Pentagon); following leads, and addressing a myriad of concerns resulting from these attacks, the FBI through its Uniform Crime Reporting (UCR) Program has struggled with how to report the data to the public. The FBI recognizes that the UCR Program must evolve to be able to capture the crimes of this modern era. As it currently exists, the UCR Program is limited in its ability to report the offenses committed at the World Trade Center, in the airways above Pennsylvania, and at the Pentagon. Recognizing the limitations of the Program, yet also recognizing that many agencies and researchers will have a specific, nontraditional application for the statistical data associated with these offenses, the FBI has compiled this special report.
Crime in the United States 2001, sec. V, Special Report (2002) p. 301-314