There are only two known repositories of Smallpox, which are held in U.S. and Russia; and these two countries are fighting international efforts to destroy the samples, claiming that they are necessary for research to combat bioterrorism.
The Netherlands is grappling with an outbreak of a rare disease. The disease is caused by bacteria so resilient that the U.S. government considers it a bioterrorism agent. Emily Kopp reports.
The case of former Army scientist Bruce Ivins and his suspected link to the anthrax killings has many Americans wondering just how difficult it would be to launch an anthrax attack.