Sarah Sewall (born August 21, 1961) is Executive Vice President for Policy at In-Q-Tel, a strategic investor for the national security community. A national security expert whose career spans government service and academia,[1] she most recently served as Under Secretary of State for Civilian Security, Democracy, and Human Rights, where she was the key architect of the Obama Administration's preventive approach to combatting violent extremism abroad. At both the Pentagon and State Department, she built and led organizations that integrated security and human rights in their policy and operational work. She spent ten years as a professor at Harvard's Kennedy School of Government, where she directed the Carr Center for Human Rights Policy. In partnership with U.S. military leaders, she helped revise U.S. counterinsurgency doctrine, led groundbreaking field assessments of U.S. civilian casualty mitigation efforts, and created new operational concepts for halting mass atrocities.