WASHINGTON, Nov. 4 -- Sen. Roger Marshall, R-Kansas, issued the following news release: Salina, KS U.S. Senator Roger Marshall, M.D. visited Schwan's pizza plant in Salina, KS this week. Schwan's is a national food production company with plants across the country. Senator Marshall toured Schwan's Salina production facility, where he saw the almost completed cold-storage expansion and watched their pepperoni pizzas be made. Schwan's is now the largest pizza manufacturer in the United States,  more PR