The U.S. National Animal Identification System (NAIS) & the U.S. Beef-Cattle Sector: A Post-Mortem Analysis of NAIS Rhonda Skaggs New Mexico State University United States of America 1. Introduction The appearance of bovine spongiform encephalopathy (BSE) in the United States in late 2003 resulted in severe economic impacts to the U.S. livestock sector. U.S. exports […]