Michael E. Salla has looked into a lot of things over the years.
http://www.coasttocoastam.com/show/2017/01/11
However, when he & others cover the experiences
of William Tompkins, things get very interesting.
http://exopolitics.org/william-tompkins-us-navy-secret-space-program ,
http://exopolitics.org/top-aerospace-designer-blows-whistle-on-secret-us-navy-space-battle-fleets
http://exopolitics.org/tag/william-tompkins ,
https://www.youtube.com/watch?v=W_kcrjhfkIA
https://www.gaia.com/video/william-tompkins-bio
http://projectcamelotportal.com/2016/10/08/william-tompkins-secret-space-program-first-hand-witness ,
https://www.youtube.com/watch?v=Sb18kkVlRh4
https://spherebeingalliance.com/blog/transcript-cosmic-disclosure-william-tompkins-bio.html
http://www.theeventchronicle.com/metaphysics/galactic/technology-decades-ahead-whats-known/#
PJC was mentioned by MES as well.
https://desertshapes.blogspot.ca/2010/05/col-philip-j-corso-roswell-beyond.html