“Jacque Vallee has studied this stuff for decades—and concluded that the military industrial complex has created lots of hoaxes.”
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Would be easier in the modern era with pilots having been trained using video games, in effect. The younger a person the more they tend to believe whatever may come up on any given screen in front of them and become excited.
For those interested in more details, an amazing military UFO/alien civilization hoax is detailed in this book:
https://www.amazon.com/Project-Beta-Bennewitz-National-Security/dp/0743470923