Official Inquiry into Unidentified Aerial Phenomena: From Project Blue Book to AATIP

To the point

Governments have long studied mysterious flying objects through programs like AATIP and Project Blue Book and through UFO desks abroad, with funding and secrecy varying, while people such as Harry Reid, Ted Stevens, Luis Elizondo, J. Allen Hynek, and Nick Pope urged serious study and most authorities concluded there was no clear national-security threat, yet the effort to understand sightings continues.