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Profile: 84th Radar Evaluation Squadron (RADES)
84th Radar Evaluation Squadron (RADES) was a participant or observer in the following events:
Within two hours of the attacks the 84th Radar Evaluation Squadron (RADES) based at Hill Air Force Base, Utah begins reviewing the radar trails of the four earlier hijacked aircraft, after Pentagon officials have turned to them to find out exactly what happened. Using their own software, the unit has the unique ability to create a “track of interest analysis,” singling out and zooming in on each of the planes. The unit has captured most of the flights of the four planes, but lost sight of Flight 93 at some point. [Airman, 12/2003] The FBI also contacts RADES within hours of the attacks, requesting detailed information on the hijacked planes. [Hilltop Times, 4/15/2004] NORAD official Colonel Alan Scott later will tell the 9/11 Commission that much of his radar data for the “primary targets” on 9/11 was not seen that day. He will say, “It was reconstructed days later by the 84th Radar Evaluation Squadron, and other agencies like it who are professionals at going back and looking at radar tapes and then given that they are loaded with knowledge after the fact, they can go and find things that perhaps were not visible during the event itself.” [9/11 Commission, 5/23/2003] Data reconstructed by RADES will be used as a source several times in the account of the hijackings and military response to them in the 9/11 Commission’s final report. [9/11 Commission, 7/24/2004, pp. 457-459]
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