@RickiTarr My dad was in the Army during, I think, the Vietnam War (1970). He was assigned to communications somewhere in Africa.
As I recall, he told us that they had these big satellite-dish-type arrays. At one point they had a blacked out luxury car that was hanging out nearby, which they assumed was some sort of spy. So they started rotating all the dishes over to "focus" on the car until it suddenly zoomed off.
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