Gabriella Blum is the Rita E. Hauser Professor of Human Rights and International Humanitarian Law at Harvard Law School (HLS) and the codirector of the HLS-Brookings Project on Law and Security. Previously, she was a senior legal adviser in the Israel Defense Forces and a strategic adviser in the Israeli National Security Council. She is the author of Islands of Agreement: Managing Enduring Armed Rivalries (Harvard University Press, 2007) and Laws, Outlaws, and Terrorists: Lessons from the War on Terrorism (with Philip Heymann) (MIT Press, 2010).