This is a fascinating and comprehensive interview with Australian researcher Paul Dean, about the classified channels the U.S. military uses to communicate with itself about the UFO and UAP sightings. These reports, starting in 1969, have yet to be de-classified and contain all sightings the military considers to be of national security interest. (The audio is at the bottom of the page and starts about 20 minutes into the recording.) So good, I listened to it twice.
How the U.S. military reports UFO sightings (Open Minds TV)