Dr. David Blum is an operations research scientist supporting the Office of the Undersecretary of Defense for Intelligence, as well as a Lecturer at the Johns Hopkins University Applied Economics Program, where he teaches a course titled "Real Risk" covering the tools of probabilistic risk analysis and warning. He has more than 13 years of experience performing operations research and risk analysis for the US national security community. He previously served as Technical Director of the Operations Research and Systems Analysis Division for the Department of Defense's Joint Improvised-Threat Defeat Office (JIDO), where hew oversaw the production of operations research analysis to support current military operations, and as an operations research scientist for several Defense Department and Intelligence Community offices. His assignments ranged from strategic assessments of future military force mixes, to tactical analyses to inform counter-terrorism operations, to development of automated processors for technical data exploitation at the national scale. He held a predoctoral fellowship at the Center for International Security and Cooperation, a Global Security graduate scholarship at Lawrence Livermore National Laboratory, and was a member of Stanford's Engineering Risk Research Group. He received his doctorate from Stanford University in management science and engineering, his Master's degree from Massachusetts Institute of Technology in political science, and his Bachelor's degree from Columbia University in history and physics, and has co-edited a book titled Counterterrorism and Threat Finance Analysis during Wartime. His research interests include crisis early warning and predictive analytics.