WASHINGTON — The Department of War released a newly unredacted FBI case file on May 8, 2026, adding several declassified pages to a previously redacted version of the document. The file, serial number 220, is part of the PURSUE archive, a collection of government records that is being slowly unsealed.
The centerpiece is a letter dated March 19, 1950, written by Michel Angel Garcia Macias of Veracruz, Veracruz, Mexico. Macias described himself as a “Pianist Composer Discoverer and Ideographic Inventor” and addressed his message to the President of the Commission of Scientific Investigation of the United States of North America in New York.
He said he was sending his “STUDIES” out of a sense of duty. The studies laid out his theories on “stratospheric aerostats,” the objects the public called “flying saucers.” The term UFO was not yet standard in 1950; the phrase “flying saucer” had dominated public discussion since Kenneth Arnold’s famous 1947 sighting.
The letter is just one item inside a much larger record. The FBI’s description says the full case file contains investigative records, eyewitness testimonies, and public reports covering UFOs and flying discs from June 1947 to July 1968, a span of 21 years. The file also includes photographic evidence from sites including Oak Ridge, Tennessee, plus technical proposals about potential propulsion systems.
Oak Ridge held special weight in that era. It was the heart of the Manhattan Project, where the atomic bomb was built.
Serial 220’s release is not an isolated event. It is one document among many in the PURSUE collection, and the government has said more records are coming. The timing matters too. The documents span July 1947, right after Roswell, through July 1968, at the peak of Cold War UFO panic.
The file mixes eyewitness testimony and photographic evidence with inventions. Macias was one of several inventors whose proposals the FBI collected. His letter is earnest. He believed he had something to contribute, and he signed as a Discoverer and Ideographic Inventor. The government filed it away and held it for 76 years. Now it is public.
The declassification remains partial. The FBI states the release is “the complete case file with several newly declassified pages and only minor redactions,” meaning some passages are still blacked out. Even so, the government is showing more than it has before.
The broader PURSUE archive is the real story here, with serial 220 standing as one file among many. But the letter from the Mexican pianist is a small, concrete part of it — a name, a date, a city, a claim, all confirmed in a government document.
Background and why it matters
The Federal Bureau of Investigation is the primary federal law enforcement agency and domestic intelligence service of the United States. It operates under the Department of Justice. The agency reports to the attorney general and the director of national intelligence.
The agency began in 1908 as the Bureau of Investigation. It adopted its current name in 1935. Over time, it evolved into a leading organization for counterintelligence and criminal investigation. It holds jurisdiction over a wide array of federal crime categories.
While the FBI focuses on domestic security, it maintains a global presence through offices in embassies and consulates. These sites facilitate coordination with foreign security services. This differs from the Central Intelligence Agency, which focuses on intelligence collection abroad and lacks law enforcement authority.
The agency’s current priorities include protecting the country from terrorist attacks and foreign espionage. It also combats cybercrime and public corruption. Because the FBI manages sensitive national security records, the release of its archives provides a window into how the government monitored perceived threats during the Cold War.
