Andrea Hall joined the National Security Council in June 2016 as the Senior Director for Weapons of Mass Destruction and Counterproliferation. In this role, she oversees and coordinates the development of national policies and programs to reduce global threats from nuclear, biological and chemical weapons; detect, identify, secure and eliminate nuclear materials; and prevent the use of emerging technology for the development of WMD. 

Ms. Hall has served in various government positions related to WMD and proliferation since 2003. From 2014-2016, she served as the National Intelligence Officer for Weapons of Mass Destruction and Proliferation. In that position, she acted as the senior substantive advisor to the Director of National Intelligence on WMD and Proliferation issues and led U.S. Government assessments on a wide variety of topics. Her previous positions at the Department of State included three years in Vienna, Austria, as the Senior Advisor to the Ambassador to UN Organizations in Vienna, as well as regional and functional positions in Washington, DC, in which she focused on a number of nonproliferation issues, including nuclear proliferation, nuclear smuggling, nuclear security, WMD terrorism, and chemical and biological weapons issues. 

Prior to joining the U.S. Government, she held positions with the RAND Corporation and led a Harvard-based nonproliferation working group between former Russian and U.S. officials. She has published several book chapters and articles on nuclear weapons, nonproliferation, and sanctions and is ABD PhD at MIT in security studies, focusing on comparative nuclear proliferation.