Paul Rosenzweig is the founder of Red Branch Consulting PLLC, a homeland security consulting company, and a Senior Fellow at the R Street Institute. He is also a Senior Adviser to the Chertoff Group. Rosenzweig formerly served as Deputy Assistant Secretary for Policy and twice as Acting Assistant Secretary for International Affairs in the Department of Homeland Security, where his responsibilities ranged from aviation security, border control, and visa policy to international data sharing, biological threats, and international relations. He is currently a Professorial Lecturer in Law at George Washington University, where he teaches a class on cyber security law and policy. He is a Senior Editor of the Journal of National Security Law & Policy and in 2011 he was a Carnegie Fellow in National Security Journalism at the Medill School of Journalism at Northwestern University. He is also a special advisor to the American Bar Association Standing Committee on Law and National Security. Rosenzweig is a cum laude graduate of the University of Chicago Law School, has a master of science degree in chemical oceanography from the Scripps Institution of Oceanography, University of California at San Diego, and a bachelor's degree from Haverford College. Following graduation from law school he served as a law clerk to Judge R. Lanier Anderson III of the U.S. Court of Appeals for the Eleventh Circuit. He is the co-author (with James Jay Carafano) of the book Winning the Long War: Lessons from the Cold War for Defeating Terrorism and Preserving Freedom and author of the book Cyber Warfare: How Conflicts in Cyberspace Are Challenging America and Changing the World. He has edited two volumes for ABA publications, and recorded three video courses for The Great Courses, most recently "Investigating American Presidents."