IDFA President and CEO Connie Tipton interviews Dan Glickman, former U.S. secretary of agriculture and co-chair of AGree, about the important role dairy plays in a global marketplace. Glickman, the keynote speaker for IDFA's Dairy Forum 2012, previews the meeting's theme: the Geopolitics of Food. He says agriculture, nutrition and conservation policy changes are key to sustaining a healthy and vibrant global food supply.