Associate Fellow, International Security
Contact information
+1 301 587 9722


  • CBRN Proliferation
  • Terrorism
  • Global trends and the future of conflict
  • Science and security
  • Health and security


2005 - PresentIndependent Consultant
1994-2005President, Chemical and Biological Arms Control Institute
1990-1993Assistant Director, Multilateral Affairs, US Arms Control and Disarmament Agency

Broadcast experience


  • New Options and New Dynamics: Chemical and Biological Weapons Proliferation in 2020, in Over the Horizon Proliferation 2020, edited by Peter Lavoy, et al (forthcoming)
  • Regional Perspectives on Arms Control: Continuity and Change, in Arms Control and Cooperative Security, edited by Jeffrey Larson and James Wirtz, Lynne Rienner Publishers (forthcoming)
  • Dangerous Weapons in Dangerous Hands: Responding to the Challenges of Chemical and Biological Terrorism¬†Proliferation Paper No. 28, Institut Francais des Relations Internationales, Summer 2009
  • Conflict Trends in the 21st Century,¬†Joint Forces Quarterly, Issue 53, 2nd Quarter, 2009
  • Co-author, Jihadists and Chemical Weapons, in Jihadists and Weapons of Mass Destruction, edited by Gary Ackerman and Jeremy Tamsett, CRC Press, 2009
  • Co-author, Responding in the Homeland: A Snapshot of NATO's Readiness for CBRN Attacks, Defense Horizons 56, Center for Technology and National Security Policy, National Defense University, June 2007
  • Negotiating Measures to Manage Biological Risks: The Need for New Thinking and New Approaches, in International Negotiation, Volume 10, Number 3, 2005
  • Fighting Bioterrorism: Tracking and Assessing US Government Programs, Chemical and Biological Arms Control Institute, December 2004