Official CIA UFO Paper:
“CIA's Role in the Study of UFOs, 1947-90”

This is a UFO paper written by Gerald K. Haines, the official historian of the Central Intelligence Agency:

https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/csi-studies/studies/97unclass/ufo.html

CIA Headquarters, Langley, Virginia
(AP photo)

Sightings (TV Series):

“Cover Up” (Sci Fi Channel)

This is a TV report regarding the U.S. government’s involvement in the UFO issue:

http://www.youtube.com/watch?v=PhzGB-C9W3M (1)

http://www.youtube.com/watch?v=0UoKw_pZD9c (2)

The most remarkable fact concerning the U.S. government’s connection to the UFO phenomenon is the fact that several former CIA Intelligence Officers joined the civilian UFO research group NICAP in the 1960s.

Quote from the Wikipedia article about NICAP:
“By 1969, Keyhoe turned his focus away from the military and focused on the CIA as the source of the UFO cover up. By December 1969, NICAP's board, headed by Colonel Joseph Bryan III, forced Keyhoe to retire as NICAP chief. Bryan was actually a former covert CIA agent who had served as founder and head of the CIA's psychological warfare division. Under Bryan's leadership, NICAP disbanded its local and state affiliate groups.”

Wikipedia article:
“National Investigations Committee On Aerial Phenomena”:

http://en.wikipedia.org/wiki/National_Investigations_Committee_On_Aerial_Phenomena

The late Major Donald Edward Keyhoe, U.S. Marine Corps,

NICAP Director, UFO Author & Researcher
(youtube.com image)

George Knapp,
U.S. Investigative Journalist &
UFO Researcher, is featured
in the Sightings episode
(photobucket.com photo)