I found a never before discussed NSA document called 'Facts and Speculations on ESP end the SIGINT Threat' about poltergeists, Soviet research and PSI phenomenon [UFOs]

This NSA document, declassified via the CIA’s reading room, wades into the murky waters of ESP and poltergeists as a potential SIGINT threat. It links Soviet PSI research to UFO phenomena, offering a rare glimpse into official paranoia. A knowing nod to those who suspect the intelligence community has long taken the paranormal seriously.