The CIA orderd Disney studios to create this documentary for the public, and every information from this documentary came from them. Then while the production was going on, then the CIA wanted to remove some pictures and only left a small part of the full information they gave in the first place. But then when the documentary was ready, banned the CIA the documentary for the public, only years later it got released to the public. You can google this if you want. Anyway here is the video.
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From @jhera