They moved with the precision of racecars hugging tight turns in close synchronization to cut down on air resistance. But there was no racetrack, just a Nevada interstate, and in this case the vehicles weren’t racecars, but a pair of 18-wheelers. When the driver in the front truck sped up or tapped on the brakes for a passing car, the rear truck responded instantly. But the driver in the trailing truck wasn’t accelerating or braking…..MORE
