Bob Lazar is one of the most famous whistleblowers of secret government UFO technology operations, and advocates of disclosure, having been hired by the government to work on those exact projects reverse engineering UFO propulsion systems and the like.
As of 2020, Bob is famous in the UFO community and evidence declassified by the CIA, and other agencies under the Freedom of Information Act, has largely corroborated many of the claims that Bob has made of the operations of various agencies.
Watch Joe Rogan’s interview of Bob Lazar: