Since he wrote "Fast Food Nation" more than a decade ago, muckraking author Eric Schlosser has noticed a sympathy gap in the food movement that he helped foster. Some foodies seem to care more about the treatment of the animals they eat than the workers who prepare and serve them. "It's not all foodies by any means," Schlosser said. "But the food movement can get sidetracked into wealthy, upper-middle-class people caring about food as status, caring about food as pleasure. I'm a huge supporter of animal welfare, but the compassion for the abuse of animals is so much more excessive,...