I'm not accusing any individual. It has been ten years (or maybe more. I didn't write anything down.) I figured if my source (Aeronautical PhD and test pilot) was correct, I probably would never hear anything more, and I never have. The only detail I vaguely remember that I haven't shared with you is that it was a Piper piston twin over a state on the East coast that is near or on the Mason-Dixon line.
I know. This sounds about as provable as the Russel's Teapot theory. I am not trying to prove anything. I am saying that, given the government's demonstrated ability to keep things secret (think Manhattan project), the story seems very plausible. Scary stuff if true. Scary stuff even if not true, because it could easily become true.