Dr. Petra DeWitt, assistant teaching professor of history and political science, will discuss the treatment of German-Americans in Missouri during World War I on C-SPAN 3 at 3:35 p.m. Sunday, Sept. 28. Although the channel is not available through Rolla’s cable providers, the program will be live-streamed at c-span.org. DeWitt will talk about her book on the subject, “Degrees of Allegiance: Harassment and Loyalty in Missouri’s German-American Community during World War I.”