The folks who think black helicopters are being used to spy on American citizens; the same folks who believe the U.S. government has built concentration camps to imprison its own citizenry; the same folks who believe the zip code implementation was a prelude to reapportioning the United States into 10 administrative regions; the same folks who believe adding flouride to the water supply is a communist plot to poison Americans.
My father (God rest his soul) was such a person, so I grew up hearing all about this stuff.