infamous area 51, which is, of course, where ufo enthusiasts say whatever it was that crashed at roswell in 1947 was taken. the tonopah test range is about 70 miles away from area 51. and, again, it is one of the most secret places on the face of the planet. ufo enthusiasts and the conspiracy community say that's where the aliens are. that's why the ufos we are trying to develop are being test flown. aviation enthusiasts say, no, it's simply the next site of generation of prototype aircraft, drones, and perhaps hypersonic weapons are tested. there was a blind spot for years. >> tucker: is there any evidence that the first camp is right or onto something? is there any evidence that the u.s. governmentre does have knowledge of ufos that hasn't been shared with the public? >> well, this all ties back to these recent revelations