The Pentagon's All-Area Anomaly Resolution Office (AARO) has combed through documents dealing with all paranormal phenomena observed in the United States since 1945. The report estimates that the majority of UFO sightings in previous decades could be attributed to "misidentification of ordinary phenomena and objects" The Pentagon is concerned that disinformation is "more widespread and easier to spread than ever before, especially with today's advanced photo, video, and computer-generated imagery tools" The AARO continues to review new reports of UFO incidents written by military personnel, as well as the FAA ( Federal Aviation Administration ) and NASA.