Farmers refuse to submit their cattle to tuberculin examinations, bring on U.S. troops to enforce the order in Tipton, Iowa. Passenger railroad train carrying U.S. Army troops arriving at station with platform crowded with people in Iowa. People wait. Cars and traffic near the station. Soldiers in train and at the station. Armed soldiers march through the city and patrol the highways. Veterinarians inject cows. Soldiers set up machine gun in middle of road.