Kelly Brownell has stepped away from his role as dean of the Sanford School of Public Policy to launch a new World Food Policy Center at Duke University. He talks with the school's new dean, Judith Kelley, about key challenges that he hopes his new center will begin to address.

For example, he hopes to get people in the food and food policy space talking to each other. The academic field is segmented, he says. "There is a lot of depth around particular topics but not much breadth across them and very little communications across them."