Psychiatrist pushes for reforms on U.S. gun safety approach

Already this year, there have been more than 3,000 firearm deaths in the U.S., according to the Gun Violence Archive. Dr. Jonathan Metzl, director of Medicine, Health and Society at Vanderbilt University and author of the new book, “What We’ve Become: Living and Dying in a Country of Arms,” joins William Brangham to discuss how America tackles gun violence.