BBC
Bbc News: Q&a: Germ Warfare
Read these questions and answers by BBC News Online about biological weapons, the threat of germ warfare, and the politics involved as of 2001. Includes many links to appropriate articles and related information.
Khan Academy
Khan Academy: Sarin Gas and Its Potent Effects on the Body
Read a passage about sarin gas and its effects on the body and answer the follow-up questions.