CIA releases 13m pages of declassified documents onlineWatch
"The records include UFO sightings and psychic experiments from the Stargate programme, which has long been of interest to conspiracy theorists.
The move came after lengthy efforts from freedom of information advocates and a lawsuit against the CIA.
The full archive is made up of almost 800,000 files.
They had previously only been accessible at the National Archives in Maryland.
The trove includes the papers of Henry Kissinger, who served as secretary of state under presidents Richard Nixon and Gerald Ford, as well as several hundred thousand pages of intelligence analysis and science research and development."
Since these documents are declassified, I assume they are not extremely important. The CIA would not declassify something they found of tremendous importance even after a hundred years.