Former US President Jimmy Carter during his election campaign in 1975 promised that if the election succeeds, declassified “X-Files” – that is, if all the existing documents related to UFOs.
The presidential chair is then actually received in 1977 and stayed in it until 1981 kept his promise to voters but only partially.
Certain information regarding extraterrestrial civilizations were apparently so “dangerous”, even as the White House chief insisted that they should not see the light.
It is interesting that Carter himself had witnessed the UFO phenomenon. In 1969, three years before he was elected governor of Georgia, he participated in the meeting of the Lions Club in Leary.