Stefan Halper is a Senior Fellow in the Department of Politics and International Studies at the University of Cambridge, and a Distinguished Fellow at the Nixon Center in Washington, D.C. Halper served in the White House and Department of State during the Nixon, Ford, and Reagan administrations. He divides his time between Great Falls, Virginia, and Cambridge, UK.
Jonathan Clarke is a Senior Fellow at the Carnegie Council on Ethics and International Affairs in New York, and a former career diplomat in the British Diplomatic Service, Together, Halper and Clarke are the authors of America Alone: The Neoconservatives and the Global Order. He lives in Washington, D.C.