As you can imagine, Marthe Cohn, an undercover Jewish spy in Nazi Germany during World War II, has a remarkable story. With her sister imprisoned at Auschwitz concentration camp and her family having fled, she posed as a nurse to slip behind enemy lines and collect intelligence on Nazi troop movements and locations — risking her life and changing the outcome of World War II. Tonight at 6:30 at Case Western Reserve University's Maltz Performing Arts Center, Cohn, 99, will speak about her experiences. Tickets are free but reservations are required. More information is available on the website. (Niesel)