Paul Rosenzweig is a Senior Fellow at R Street Institute, and the Founder of Red Branch Consulting PLLC, a homeland security consulting company, and a Senior Advisor to the Chertoff Group. Rosenzweig served as Deputy Assistant Secretary for Policy in the Department of Homeland Security. He is a Professorial Lecturer in Law at George Washington University. He is Advisor to and former member of the American Bar Association Standing Committee on Law and National Security and a Contributing Editor of the Lawfare blog. He is the Author of Cyber Warfare: How Conflicts in Cyberspace are Challenging America and Changing the World and of two video lecture series from the Great Courses, Thinking About Cybersecurity: From Cyber Crime to Cyber Warfare and The Surveillance State: Big Data, Freedom and You.