When the 20 agents arrived bearing a search warrant at her Ventura County farmhouse door at 7 a.m. on a Wednesday a couple weeks back, Sharon Palmer didn't know what to say. This was the third time she was being raided in 18 months, and she had thought she was on her way to resolving the problem over labeling of her goat cheese that prompted the other two raids. (In addition to producing goat's milk, she raises cattle, pigs, and chickens, and makes the meat available via a CSA.) But her 12-year-old daughter, Jasmine, wasn't the least bit tongue-tied. "She...