For decades, research has shown a link between cancer and pollution from industrialized agriculture. In states like Iowa, which leads the nation in corn production, cancer rates, especially among young people, are rising faster than anywhere else in the country. What role does federal farming policy play? In this Expert Q&A with Michigan News, U-M professor of landscape architecture Joan Iverson Nassauer, who studied agricultural practices in rural America in 2002, reflects on what has changed since her first study and shares new insights for the future of U.S. agricultural policy.