Mr. Mosher is a Senior Policy Analyst at the RAND Corporation, specializing in ballistic missile defense and nuclear weapons issues. Prior to joining RAND, he served as a principal analyst in the National Security Division of the Congressional Budget Office. His recent Rand publications include Army Forces for Homeland Security (co-authored) Individual Preparedness and Response to Chemical, Radiological, Nuclear, and Biological Terrorist Attacks (co-authored), and Beyond the Nuclear Shadow: A Phased Approach for Improving Nuclear Safety and U.S.-Russian Relations (co-authored).