UFO conspiracy theories argue that evidence of unidentified flying objects and extraterrestrial visitors is being suppressed by various governments, and politicians in every country, most notably the officials of Washington DC.
Such conspiracy theories commonly argue that Earth governments, especially the Government of the United States, are in communication and/or cooperation with extraterrestrials despite public claims to the contrary, and further that some of these theories claim that the governments are explicitly allowing alien abduction.Various UFO conspiracy ideas have flourished on the internet and were frequently featured on Art Bell's program, Coast to Coast AM. According to MUFON, the National Enquirer reported that a survey found 76% of participants felt the government was not revealing all it knew about UFOs, 54% thought UFOs definitely or probably existed, and 32% thought UFOs came from outer space.
Notable persons to have publicly stated that UFO evidence is being suppressed include Senator Barry Goldwater, Admiral Lord Hill-Norton (former NATO head and chief of the British Defence Staff), Brigadier General Arthur Exon (former commanding officer of Wright-Patterson AFB), Vice Admiral Roscoe H. Hillenkoetter (first CIA director), astronauts Gordon Cooper and Edgar Mitchell, and former Canadian Defence Minister Paul Hellyer. Beyond their testimonies and reports no substantiating evidence has been presented to support their statements and conclusions. According to the Committee for Skeptical Inquiry little or no evidence exists to support them despite significant research on the subject by non-governmental scientific agencies.