Jocelyn Simonson, a leading authority on bail reform and social movements, discusses her new book, Radical Acts of Justice, at the Harvard Book Store. Radical Acts of Justice argues that the answer to mass incarceration lies not with experts and pundits, but with ordinary people taking extraordinary collective action, using the tools of criminal procedure to shift power away from the elite actors at the front of the courtroom and toward the swelling collective in the back.