Dr. Paul Zeitz, author of ‘Waging Justice’, has clearly defined the role of the doctor as to take on the public health issues that affect each person around the globe. His memoir discusses how he spearheaded a global charge against AIDS and climate change. His journey includes a personal transformation which led to global activism and is a blueprint for our times. He feels that those in his profession, and all of us really, must make a choice: to ‘see’ injustices before us and seeks solutions. Or not. In the process, we explore the great public health challenges in the period ahead. It’s a clarion call to action in this episode.