Iranian Expectations: Nicholas Burns (right), former under secretary of state for political affairs, speaks at a John F. Kennedy Jr. Forum in March on the future of the U.S.-Iran relationship. Burns argued that Iran threatens U.S. national security because of its growing regional power, pursuit of a nuclear weapons capability, and support for groups that oppose America's presence in the Middle East. Joining him in the Forum discussion was Ashton Carter, co-director of the Belfer Center's Preventive Defense Project.
Photo by Marcus Halevi