Cynthia Miller-Idriss is a sociologist and professor in the School of Public Affairs and the School of Education at American University, where she is the founding director of the Polarization and Extremism Research and Innovation Lab (PERIL). An MSNBC columnist and a regular commentator in US and international media, Miller-Idriss is the author of Hate in the Homeland: The New Global Far Right (Princeton), The Extreme Gone Mainstream: Commercialization and Far Right Youth Culture in Germany (Princeton), and Blood and Culture: Youth, Right-Wing Extremism, and National Belonging in Contemporary Germany.