Never heard of it, but WOW. What could they have been assigned to do that was so weighty, it’s still being buried by the military 60 years later? Even in hindsight, if they were there acting as intel for the CIA or whomever, it would be old news, a piece of Cold War history. It’s hard to grasp that whatever it was they were up to then would have some sort of active relevance today.
The relevance is likely that the spy agencies are ,and have been for decades, ignoring American and international laws .