Photography Changes Everything, a new book from the Smithsonian and the Aperture Foundation, uses the visual assets of the museum to explore how photographs impact our culture and our lives. Join Marvin Heiferman, editor, David Griffin, Visuals Editor of the Washington Post, Bruce Hoffman, director of security studies at Georgetown University; Philip Kennicott, art and architecture critic of the Washington Post; and other guests, for a discussion moderated by Merry Foresta, founding director

of the SI Photography Initiative.