The world of emergency medical services remains largely a white male profession across the country and in Minnesota. On Monday, St. Paul graduates its fifth class of emergency-medical technicians, most of them young people of color from low-income neighborhoods. The idea is to diversify the pipeline to medical professions and to the St. Paul Fire Department, which has a history of racial exclusion. It's also a way to give inner-city minorities, including young parents, a shot at meaningful careers in the healthcare field.