USDA starting over on national animal ID system Vilsack: Feedback called for 'new approach to animal disease traceability' Jeff Caldwell Agriculture Online Multimedia Editor 2/05/2010, 2:05 PM CST It's back to the drawing board for USDA's National Animal Identification System (NAIS). Officials announced Friday that current plans toward the NAIS are being scrapped and the agency is starting over in building a national system of animal traceback. From day-one, the NAIS had its critics, and Friday's announcement doesn't constitute the end of the program altogether, but a new start for the process of revising the old rules and offering a...