A conversation with Dr. T. Stephen Jones, a Northampton resident who was an active participant in the successful World Health Organization Smallpox eradication programs in India, Bangladesh, and Somalia. He is also known as a national leader in the prevention of HIV, viral hepatitis and drug overdose among injection drug users, serving in several director positions for the Centers for Disease Control and Prevention. He continues to work as a consultant and public health advocate on drug use practices as well as climate issues to this day.