Homeland Security Affairs is the peer-reviewed online journal of the Naval Postgraduate School Center for Homeland Defense and Security (CHDS), providing a forum to propose and debate strategies, policies, and organizational arrangements to strengthen U.S. homeland security. The instructors, participants, alumni, and partners of CHDS represent the leading subject matter experts and practitioners in the field of homeland security.December 2015. The December 2015 issue of Homeland Security Affairs features an essay which develops a methodology for the comparative assessment of homeland security risks and hazards. In “Assessing Homeland Security Risks: A Comparative Assessment of 10 Hazards”, Russell Lundberg and Henry Willis examine the chall...