Jenifer Mackby is a Senior Advisor at the Partnership for a Secure America, focusing on international security issues, including a project on Strengthening the International Atomic Energy Agency. Previously, she worked at the Center for Strategic and International Studies on Asian and European Trilateral Nuclear Dialogues, U.S.-U.K. Nuclear Cooperation, Strengthening the Global Partnership, and a Russian-European study on bioterrorism, among others. Ms. Mackby served as senior political affairs officer for the negotiations on the Comprehensive Nuclear-Test-Ban Treaty (CTBT), the Group of Scientific Experts, Transparency in Armaments and the Biological Weapons Convention review process at the Conference on Disarmament in Geneva, and then as secretary of the work on verification at the CTBT Organization Preparatory Commission in Vienna. She also worked in the United Nations on nuclear, biological, conventional, and outer space issues. She has co-authored a number of books and has written articles for the New York Times, Newsweek, the Bulletin of the Atomic Scientists, publications of the National Defense University and the European Union Joint Research Center. Ms. Mackby has served as rapporteur for several international conferences, and has spoken at conferences in Europe, Asia, South America and the US. She has lectured at universities and speaks fluent French and Spanish.