Conversation: Filming “The Weight of the Nation”

With more than two-thirds of U.S. adults age 20 and over now overweight or obese, a new four-part documentary series produced by HBO outlines the scope of the problem, common myths, and the costs of inaction. John Hoffman, executive producer of the “Weight of the Nation” series, sat down with Ray Suarez to discuss the filmmaker’s approach to the public health problem.