This program was recorded BEFORE the US strike that killed Iranian General Qassim Suleimani. What are the primary foreign policy and national security challenges facing the United States as President Donald J. Trump enters his fourth year in office under the cloud of impeachment? On this annual edition of the program, host Carol Castiel talks with Tony Arend, Professor of Government and Foreign Service at Georgetown University and Ambassador Mark Lagon, Chief Policy Officer at the Friends of the Global Fight against AIDS, Tuberculosis and Malaria.