Reddit reviews Mad Sheep: The True Story Behind the USDA's War on a Family Farm

I think you might be thinking of Sacrificial Lambs, about the 2001 USDA seizure of the Faillaces' sheep (they were brought over from the EU in the late 90s as milking sheep - something that was not really available in the U.S. at the time - meat sheep are different than milk sheep). Linda Faillace wrote a book about the whole debacle: Mad Sheep. (I visited the Faillaces' farm as part of a 1999 American Cheese Society tour.)