A trucker relates that he was traveling through rural North Carolina on I-95 when a brown sedan merged onto the highway. It weaved back and forth between lanes, causing the driver of the truck to shift into a lower gear. At first he thought the driver was drunk, but when he came closer, the trucker saw an old man shaking uncontrollably behind the wheel. He noticed a Citizen’s Band aerial whipping to and fro as the car jerked between lanes, so he called on the radio: “You in the brown Chevy, if you can hear me, pull over. Pull off...