Of all the files available in the FBI's online database, the most-viewed is a two-paragraph note from 1950 called the Hottel memo. The FBI never followed up on it. Now, some say it proves the existence of UFOs.
What Makes It So Intriguing
Why the FBI Doesn't Care
FBI Vault Reveals A UFO Memo
Key Facts In This Video
The FBI's digital reading room, where any FBI report can be viewed online, is called the Vault. 00:00
The FBI's most viewed file details the account of an Air Force officer recovering three flying saucers in New Mexico in 1950. 00:44
There are hundreds of reports in the "unexplained" section of the FBI's Vault about UFO and alien sightings that are more popular than the most famous criminal case files. 02:03
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