It was difficult to watch this film about the insidious and enduring way in which the Protocols of Zion continues to justify and inspire hatred and division. The narrative is complicated and deepened by filmmaker Mark Levin’s inclusion of his father in his far-ranging inquiry which includes fearless conversation with extremists (of many kinds, Aryan, Palestinian-American, reformed), interfaith activists, talk-radio hosts, Ted Haggard and other born-again Christians, Matisyahu, 9/11 conspiracy theorists, and a medical examiner responsible for identifying remains in the World Trade Center.