Secret Hexagon Rescue Mission
It still amazes me how many resources went into spy satellites in the 60′s and 70′s. Designing, building, launching and operating — all under super-secret conditions — using transistor radio era technology must have been mind-boggling for the non-scientists. And film. They used film to get the images they needed. And how did they get the film back to earth? Why, drop the huge canister in the ocean, of course!
Recent news about the declassification of rescue mission in 1972 to retrieve a canister that dropped into the ocean without a parachute. Imagine that: the rescue mission was classified!