The Divided States of America? & A New Look at Gun Violence

Author and scholar Amy Chua talks to Steve Paikin about her latest book, "Political Tribes: Group Instinct and the Fate of Nations." She discusses how American foreign policy has ignored the internal ethnic divisions in countries and conflicts abroad, and how those same divisions at home are tearing the United States apart. Then, A motion put forward to the Toronto Board of Health by an Ontario school trustee calls for a public health response to gun violence. The Agenda discusses the merits of that approach.