Moderator: Gerardo Suárez, National Autonomous University of Mexico Panellists: Federico Guendel, former Director, International Monitoring System Division, CTBTO Raymond Jeanloz, Professor of Astronomy, University of California Berkeley Joachim Schulze, Chairperson of the CTBTO PrepCom Working Group B John J (Jay) Zucca, Principal Deputy Global Security Directorate, Lawrence Livermore National Laboratory