When Eliseo Hernandez came to the United States 30 years ago, he thought he drove better after a few beers. Driving drunk had been normal back in Mexico, he said. But Hernandez, 54, learned of its perils firsthand. He quit the practice after falling asleep at the wheel and hitting a tree 18 years ago. Then, last year, a young Hispanic man who authorities say was drunk nearly killed Hernandez's only son, Diego, in a crash on a rural Johnston County road. Eliseo Hernandez's daughter, who was nine months pregnant, lost her unborn child in the accident. Hernandez has spent...