CHERYL BITHER, U.S. Army Medical Materiel Agency, Federal Emergency Management Agency

WILLIAM BLAKELY, Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, MD

CHARLES BLUE (CAPT.), Office of Health Affairs, Department of Homeland Security

ARNOLD BOGIS, Belfer Center for Science and International Affairs, Harvard Kennedy School

LUCIANA BORIO, Center for Biosecurity of the University of Pittsburgh Medical Center, Baltimore, MD

JULIA BURR, Institute for Defense Analyses, Alexandria, VA

SANDRA BURRELL, Government Accountability Office, Washington, DC

DUANE CANEVA, Medical Preparedness Policy, White House Homeland Security Council

ELLEN CARLIN, Committee on Homeland Security, U.S. House of Representatives

CULLEN CASE, JR., National Marrow Donor Program, Radiation Injury Treatment Network, Minneapolis, MN

DAVID CASSATT, Division of Allergy, Immunology, and Transplantation/National Institute of Allergy and Infectious Diseases, National Institutes of Health

RICK CHRISTENSEN, National Nuclear Security Administration, Department of Energy

ZACHARY COILE, San Francisco Chronicle

NORMAN COLEMAN, Office of the Assistant Secretary for Preparedness and Response, Department of Health and Human Services

THOMAS COTTON, JK Research Associates, Washington, DC

MIKE DAILY, private citizen

DANIEL DALTON, National Nuclear Security Administration, Department of Energy

WILLIAM DICKERSON (COL.), Red Cross, National Naval Medical Center, Bethesda, MD

MIKE FANELLI, Texas Christian University

AARON M. FIROVED, Homeland Security and Governmental Affairs Committee, U.S. Senate

DAVID FOX, Government Accountability Office, Washington, DC

ADAM FRANKEL, U.S. Strategies Corporation, Alexandria, VA

HARRY GEDNEY, National Park Service, National Mall and Memorial Parks, Washington, DC

MARCY GRACE, Scientific Research Department, Armed Forces Radiobiology Research Institute, Bethesda, MD