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Analyst in Immigration Policy
Congressional Research Service, U.S. Library of Congress
Visiting Fellow, American Enterprise Institute
and Former Assistant Secretary for Western Hemisphere Affairs at the U.S. Department of State
Former Assistant Administrator for Latin America and Caribbean
at the U.S. Agency for Interanational Development
Associate Director
Latin American Program, Woodrow Wilson International Center for Scholars
Acting Assistant Secretary and Chief Diplomatic Officer
Office of Policy, U.S. Department of Homeland Security
Deputy Assistant Secretary for Central America and the Caribbean
Bureau of Western Hemisphere Affairs, U.S. Department of State
Military Deputy Commander
U.S. Southern Command, U.S. Department of Defense