Book excerpt: Biotechnology, Weapons and Humanity traces the historical development of biological weapons and considers the role of health care professionals, scientists, governments, and international agencies in limiting and managing the effects of new biological weapons. In particular, the strengths and weaknesses of the Biological and Toxin Weapons Convention are examined, and steps that can be taken to minimize the risk of the proliferation of weapons. This report considers whether new biological weapons, made possible by the mapping of the human genome, could be incorporated into the arsenals of states and terrorist organizations. How might the revolution in biotechnology be used to attack the genetic constitution of a national or ethnic group, or enhance the virulence of organizations hostile to human health?