Global Lessons on Guns – A Fareed Zakaria GPS Special Update

As grim observances for America's notorious shooting massacres come and go, CNN's Fareed Zakaria explores mental health and guns, the Second Amendment, mass shootings, and the politics and policies of guns in America and around the world for a special edition of Fareed Zakaria GPS. Guests: Michael Waldman; Jeffrey Toobin; Dr. Amy Barnhorst, MD; Dr. Sanjay Gupta, MD. Update to original that aired December 8, 2013.