You can see them from a long way offin Kansas you can see everything from a long way off-glinting in the sunshine. At first you think the truck must be broken down or abandoned, but just as you get within thirty or forty feet of it, it pulls out onto the highway in front of you, causing you to make an immediate downward adjustment in your speed from sixty miles an hour to about twelve miles an hour and to test the resilience of the steering wheel with your forehead. This happens to you over and over. Curious to see what sort of person could inconvenience you in this way out in the middle of nowhere, you speed up to overtake it and see that sitting at the wheel is a little old man of eighty-seven, wearing a cowboy hat three sizes too large for him, staring fixedly at the empty road as if piloting a light aircraft through a thunderstorm.