Bob and Mary Ellen, longtime HEAL board members, talk about how they first became involved in the organization. They describe how the group’s work shifted over the years, from primarily a focus on nuclear waste issues to multiple campaigns of which nuclear now is a relatively small part. Matt asks them about the different staff and executive directors they have worked with, and what common characteristics the group’s different leaders have shared. They discuss what factors have helped HEAL grow and thrive and what Bob and Mary Ellen think are the most important criteria that make a good nonprofit Board member. For more information, check out HEAL’s Board of Directors web page and op-eds that Bob and Mary Ellen have written on nuclear waste and air quality science.