Loony, completely unsubstantiated fringe deviations aside, governments really do develop and build secret technology in secrecy, in ways that can only be guesse

Loony, completely unsubstantiated fringe deviations aside, governments really do develop and build secret technology in secrecy, in ways that can only be guessed at by very hazy inference for a time. And there are enough weird things about the JFK assassination for it to be understandable that many people, even serious investigators, spent decades with doubts about the basic lone gunman narrative.