TOP SECRET: Your Briefing On The CIA's Cold-War Spy Satellite, 'Big Bird' -- The Atlantic
The amazing story of how our supersecret, Cold-War spy satellites took photos of the Soviet empire and dropped them to Earth, all without the help of computers, bandwidth, or digital cameras.
Here's your mission, should you choose to accept it: build a camera that can take high-resolution photographs of the Earth from orbit and return them to the Central Intelligence Agency. There's only one catch: you don't get to use a computer or a single kilobyte of network bandwidth.
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My Comment: For more info on this spy program, go here.