Award-winning journalist and author Peter Bergen joins U-M public policy professors Javed Ali and Susan D. Page for a timely conversation on the attacks’ enduring impact on U.S. national security and the future of terrorism. 4–5:30 p.m., Weill Hall, Annenberg Auditorium, 735 S. State. Free. Preregistration required at fordschool.umich.edu/events. ffspp-events@umich-edu.