A just released declassified FBI cable from Director J. Edgar Hoover reveals that the sensitive Oak Ridge National Laboratory in Tennessee was buzzed by 11 or more UFOs on Oct. 12, 1950 – and had its radar temporarily jammed. (See documents below)
In the frantic cable Hoover demanded to know all of the facts concerning the incident to ensure “the protection of vital installations.
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Declassified Cables: Hoover Tells of UFOs Buzzing Installation and Jamming Radar - Latest Sightings and Analysis of UFOs, Aliens, Conspiracies and the Unexplained - Sighting UFO.Net