by Mindy Belz
Cover Story | Keeping track of the world's deadly diseases is fast becoming a matter of national security: Defense and medical experts fear that the victory over smallpox-one of the greatest medical achievements of the 20th century-is sowing seeds for its clandestine use in 21st-century germ warfare. And the Bush administration is signaling that it is prepared to stand alone, in the face of an international treaty, to protect U.S. interests
