Agri-terrorism concerns officials About 30 farmers and ranchers heard Dr. Dave Sparks, veterinarian with Oklahoma State University in Stillwater, urge county commissioners, county law enforcement and county emergency management directors to make plans to prevent agri-terrorism and plans on how to control it if it does occur. Sparks noted that while Homeland Security personnel were searching airplane passengers for guns and weapons, the Federal Bureau of Investigation (FBI) arrested one Asian man last year with a bottle of cattle blood contaminated with the hoof-and-mouth disease virus. Sparks cautioned those attending to not confuse hoof-and-mouth disease with a disease called hand-foot-and-mouth disease which infects children. Hoof-and-mouth disease only infects animals with cloven hooves, such as cattle, sheep, goats and hogs. It does not infect humans but can be carried by humans, he said. He noted that the hoof-and-mouth disease virus, if set loose in Oklahoma City, could infect the entire state within four days. The disease is not usually fatal to animals, but leaves them debilitated, and those which survive become carriers, Sparks said. Hoof-and-mouth disease is airborne, and has been shown to spread about 30 miles per day....