premise: While that information circulated within the FAA, we found no evidence that the hijacking was reported to any other agency in Washington before 8:46.
hypothesis: We found no evidence that the 9/11 hijacking was reported to any other agency in Washington before 8:46 AM because of delays as the information circulated within the FAA which in hindsight was a major problem in coordinating agencies to respond in time to prevent the completion of the terrorists attacks. 