The Harvard National Security Journal has hosted the following symposia. See the links below for related videos and information.
2010 Spring Symposium: Drone Warfare: New Robotics & The Legality of Targeted Killings
2011 Winter Symposium: Understanding Detention and Predicting Prosecutions
2011 Spring Symposium: Cybersecurity: Law, Privacy, and Warfare in a Digital World
2011 Fall Symposium: Law, Security, and Liberty After 9/11: Looking to the Future
2013 Spring Symposium: Blurring Boundaries: Human Rights in Armed Conflicts