text:  Farmers will likely also have to tag their animals with physical tags in addition to the new RFID tags to be able to identify them at a distance. Ken Fox is a South Dakota farmer and chair of R-Calif USA's Animal Identification Committee. He told Wisconsin State Farmer that 50% of a herd will lose their RFID tags within five years. They're expensive, they're prohibitive, they're ineffective, and ultimately useless. Now,