a collection of heavily redacted letters and memos from the Federal Bureau of Investigation (FBI) pertaining to reported sightings of unidentified flying objects (UFOs) in the 1950s. The correspondence reveals internal FBI discussions about investigating these reports, including considering the credibility of witnesses and exploring potential explanations. Several letters suggest individuals contacted the FBI with theories about UFOs, prompting internal assessments and requests for further information. The redactions obscure details of many investigations and the identities of several individuals involved. Overall, the documents offer a glimpse into the FBI's handling of early UFO reports and the limited public information available at the time.