Claire Finkelstein, Senior Fellow of FPRI, is the Algernon Biddle Professor of Law and Professor of Philosophy at the University of Pennsylvania Law School and Director of Penn Law’s Center for Ethics and the Rule of Law (CERL). Professor Finkelstein’s current research addresses national security law and policy, with a focus on ethical and rule of law issues that arise in that arena. In 2012, she founded CERL, a non-partisan interdisciplinary institute that seeks to promote the rule of law in modern day conflict, warfare, and national security. An expert in the law of armed conflict, military ethics, and national security law, she is a co-editor (with Jens David Ohlin) of The Oxford Series in Ethics, National Security, and the Rule of Law, and a volume editor of its four titles thus far: Targeted Killings: Law & Morality in an Asymmetrical World (Oxford University Press, 2012); Cyber War: Law and Ethics for Virtual Conflicts (Oxford University Press, 2015); Weighing Lives in War (Oxford University Press, 2017); and Sovereignty and the New Executive Authority (Oxford University Press, 2018). Professor Finkelstein has briefed Pentagon officials, U.S. Senate staff, and JAG Corps members on various issues in national security law and practice. She is a frequent radio, broadcast, and print commentator and has published op-eds in The New York Times and The Hill. Her prior scholarly work focuses on criminal law theory, moral and political philosophy, jurisprudence, and rational choice theory. She is also the editor of Hobbes on Law (Ashgate Publishing, 2005) and is currently completing a book called Contractarian Legal Theory.