Judith Herman is a psychiatrist, researcher, teacher, author and a leading expert on the healing of traumatic stress. She is Professor of Psychiatry at Harvard Medical School and is the author of many books on PSTD, most recently Truth and Repair: How Trauma Survivors Envision Justice. A lifelong activist, she brings deep insight and understanding to the societal context in which trauma occurs, from the personal to the political, and these are the themes we discuss today.