Military secrecy, the "declassification fraud," and the systematic manipulation of UFO investigation reports from the 1960s to the 1990s.
The search term refers to the book Materia Reservada by the prolific Spanish author and UFO researcher J.J. Benítez , first published in 1993. materia reservada jj benitez pdf download top
Materia reservada : Benítez, J. J., 1946- : Free Download, Borrow, and Streaming : Internet Archive. Internet Archive the "declassification fraud