This book tells the story of Agent Orange, its usage and the policies that surround it. Agent Orange contains a contaminant known as TCDD. It was the most widely used defoliant from 1965 - 1970 and became one of three major tactical herbicides used in Vietnam. More than 45 major health studies were conducted with Vietnam veterans from the United States, Australia, New Zealand, and Korea seeking a relationship between veterans' health and TCDD. Allegations of birth defects in the families of Vietnam veterans and the Vietnamese represented a case study in propaganda and deliberate misinformation by the government of Vietnam. The Policies of the US Government implemented by Congress and the Department of Veterans Affairs (DVA) identified 17 recognized associated presumptive diseases that failed the tests of "cause and effect" and common sense. This book tells the story of Agent Orange, its usage, the health studies and those policies from a diverse range of perspectives, delving into science, statistics, history, policy and ethics. It is of interest to scholars engaged in history, political and social philosophy and ethics.