Bioviolence is the ultimate act of terror. The dangers are speedily accelerating, and too little is being done to prevent it. This book describes how diseases such as smallpox, anthrax, or ebola might be used for hostile purposes. It portrays developers of disease weapons and who may have them now, including rogue States and groups such as Al-Qaeda. It formulates a strategy for law enforcers, scientists, and public health officials to prevent intentional disease. Nations and international organizations, especially the United Nations, must coordinate their efforts to improve humanity's security. Altogether the threat of bioviolence is an acute challenge for law and governance. This book explains how to meet that challenge.