I haven’t been in Fulton, Kentucky, for more than 30 years. It’s very likely a pretty nice town. Even then, in July 1966, the night of the unpleasantness, there were at least three mighty fine people living there. That’s how we managed to get out with no more physical damage than a few bumps and bruises. And of course, a ruined truck.

Today, though, urban migration is making cities grow so rapidly that the newcomers don’t need to become urbanized. Instead, they ruralize the city,…