Dr. Thomas Roffe%2C left%2C is the former national chief of wildlife health for the U.S. Fish and Wildlife Service and Bruce Smith%2C right%2C spent more than half of his career as a senior researcher and wildlife biologist at the National Elk Refuge. Both Roffe and Smith warn that CWD and feeding elk have all the makings of zoonotic disaster. Photos courtesy %22Feeding the Problem%22