When you hear the name of the nonprofit “Doctors Without Borders,” you’re usually hearing about a catastrophe--the devastating cyclone that hit Mozambique last week, for example … the ebola epidemic in Congo, or streams of refugees. In more than sixty countries across the globe, Doctors Without Borders works to care for the displaced--medical treatment, food, safety. What’s involved in doing this work? Donna Canali, a nurse and team coordinator, shares the nonprofit’s principles.