Paul Harvey tells about a roadside sign that stands on I-95 as you approach De Land, Florida. The yellow diamondshaped sign warns travelers: NARCOTICS INSPECTION AHEAD. There is no inspection, but drivers who see the sign panic and make an immediate illegal U-turn. They are stopped and searched. The American Civil Liberties Union is objecting. (1)

A farmer was trying out his new car. As he approached his farm, he decided to see how fast it would go. He raced by the side road that led to his house and drove on for a mile or so. Then he made a sharp U-turn. He sped back toward the side road.

A driver on that same road saw the U-turn and the farmer's fast rate of speed, and deduced, wrongly of course, that the farmer was driving an unmarked police car. Thus, he quickly headed down the side …