Just watched a 2017 documentary via Roku entitled Unacknowledged. The title is about the 80 year lies about UFOs but explains so much more. The deep state kept it very close to the vest...so deep that even Presidents were not given clearance to know about it...they even spoke about false flags, etc.

I have not been comfortable about the subject of UFOs....but this was very well done and had prior astronauts, other countries represented....amazing.

https://m.imdb.com/title/tt6400614/

Dr. Steven Greer presents brand new, top-secret evidence supporting Extraterrestrial contact including witness testimony, classified documents, and UFO footage while also exploring the consequences of ruthlessly enforcing such secrecy