The Air Force Closed the UFO Program. The NSA Didn't Get the Memo.

On December 17, 1969, the U.S. Air Force announced it was done with UFOs — permanently. Fourteen days later, the NSA published a new instruction manual for reporting them.

That's not a leak. Not a rumor. It's a document. Sitting in the National Archives. Record Group 615. Dated January 1, 1970.

The document is a general description of CIRVIS — the Communication Instructions for Reporting Vital Intelligence Sightings — filed under the NSA's records in the UAP Records Collection. JANAP 146. The instruction manual for what to do when a pilot, a ship captain, or a ground observer sees something they can't identify in controlled airspace. The Air Force ran this program for years. Project Blue Book was its public face. On December 17, 1969, the Secretary of the Air Force held a press conference and declared the whole enterprise finished. No more investigations. No more case files. UFOs, officially, were no longer a national security concern.

Two weeks later, the NSA was still publishing the rulebook.

Here's what CIRVIS actually was. Under JANAP 146 — a joint military communications directive — pilots and crews were required by law to report unidentified aerial phenomena through official channels. Not encouraged. Required. The reporting obligation carried the weight of federal statute. Failure to comply was a criminal matter under the Communications Act. And the system that collected those reports — that inbox — apparently didn't close when Blue Book did.

The Air Force closed the investigation. Nobody closed the inbox.

That's the question the January 1970 document raises, and it's a good one. If the NSA was maintaining and distributing CIRVIS reporting instructions after the Air Force's public exit, then someone was still receiving those reports. Someone had a filing system. Someone was reading them. That archive, if it exists, has never been publicly identified.

While the Air Force was telling the public it had lost interest, its own intelligence unit was generating case files that don't look like disinterest.

The 4602D Air Intelligence Service Squadron — not the press office, the intelligence unit — investigated UFO sightings throughout the 1950s. Most cases generated three to seven documents. Routine stuff. A sighting, a form, a disposition. The New Orleans case from April 21, 1955 generated sixteen files. The Watertown, New York case from March 11, 1956 generated seventeen.

Sixteen and seventeen files, respectively, in a series where the average is closer to five.

4602D AISS case file page, New Orleans sighting series
Source: National Archives, NAID 28987545. View full document

Nobody has publicly identified the Watertown incident as a major UFO case. It doesn't appear in the standard histories. Watertown sits roughly thirty miles from the Canadian border, within range of Griffiss Air Force Base. Seventeen bureaucratic actions on a single sighting. Seventeen. And then silence — for decades.

The New Orleans case is similar. Sixteen files from the 4602D's intelligence arm, not the public relations operation. These aren't forms acknowledging a letter from a curious civilian. These are investigative actions. Sixteen of them, on one incident, in April 1955.

The Chanute Air Force Base case from July 1960 is the largest single entry in the sanitized Blue Book files — thirty-five pages. Chanute was a technical training base. Not a radar installation. Not a combat wing. A school. Whatever happened there in the summer of 1960 produced a paper trail nearly three times the average Blue Book case. The word "sanitized" in the series title is worth sitting with. These are the cleaned versions.

Project Blue Book sanitized case file, Chanute AFB
Source: National Archives, NAID 28987545. View full document

Then there's Donald Keyhoe.

Keyhoe was a retired Marine Corps major and the most prominent civilian agitator for UFO disclosure in the 1950s and '60s. He wrote books. He testified. He ran the National Investigations Committee on Aerial Phenomena. He was not a fringe figure — he was a credentialed irritant with a mailing list and a platform, and the government's response to him is documented.

What's in the National Archives is a letter Keyhoe wrote directly to former President Harry Truman, with an attachment. The record group is unknown — meaning it likely surfaced in Truman's post-presidential papers, not in any military or intelligence file. Which means Keyhoe believed, or at least calculated, that a former president retained either knowledge of or influence over UFO policy after leaving office.

The attachment is the buried lead. Seven pages total. We know the letter exists. We don't know what he sent with it.

A retired Marine writing to a former president, attaching something, about UFOs. That's a thread worth pulling.

What we know, confirmed by documents in the National Archives: the Air Force publicly closed Project Blue Book on December 17, 1969. The NSA published updated CIRVIS reporting instructions on January 1, 1970. The 4602D Air Intelligence Service Squadron generated case files on individual sightings that ran to sixteen and seventeen documents — outliers that have never been publicly explained. The largest sanitized Blue Book case file belongs to a training base in Illinois. And Donald Keyhoe sent something to Harry Truman.

Blue Book sanitized case file document page
Source: National Archives, NAID 28987545. View full document

What we don't know: who was receiving CIRVIS reports after January 1970, where those reports went, and whether that archive has ever been reviewed.

The All-domain Anomaly Resolution Office is currently the government's designated home for UAP reporting. Congress has mandated disclosure timelines. Researchers are watching the hearing rooms and the press releases.

Maybe they should also be watching College Park, Maryland. The National Archives facility there holds the records. The CIRVIS document is already declassified. Already cataloged. Already sitting there.

The Air Force said it was done. The NSA kept the manual current. Somewhere between those two facts is the actual story — and it's been waiting in a filing cabinet for fifty-four years.

Further Reading — National Archives Documents Referenced:

- JANAP 146 / CIRVIS Description, January 1, 1970 — RG 615, NSA Records
- 4602D AISS Case File: New Orleans, April 21, 1955 — 16 pages
- 4602D AISS Case File: Watertown, New York, March 11, 1956 — 17 pages
- Blue Book Sanitized Case File: Chanute AFB, Illinois, July 1960 — 35 pages
- Letter from Donald E. Keyhoe to Former President Harry S. Truman, with Attachment

Stay curious.

Find more at @boggleriley and File Zero on Substack