In 1948, Hindu nationalist Nathuram Godse fired three bullets at the nonviolent Indian independence leader Mahatma Gandhi, killing him instantly. Seventy years later, it is Godse’s ideology, not Gandhi’s, that runs the country. It’s easy to imagine this frightening reality as a source of paralysis, but in this unsentimental, tenacious documentary, director Anand Patwardhan puts his life on the line to explain how his country’s relationship with reality has shifted so radically. Masterfully shuffling between past and present day, Patwardhan’s unflinching camera carefully reveals the ideological viruses festering in his society. He trains us to find truth in a sea of propaganda. And truth, however it is recorded, is a beautiful thing spoken by the heroic, shattered only by murder. Reason is a staggering and insightful work of reportage, a brave and vital masterpiece. (CB) There will be a 15 minute intermission. Q&A follows in the Bingham Gallery.