Authors Deborah Prothrow-Stith and Howard R. Spivak-- two prominent Boston-area public health officials who played leading roles in that city's turnaround-- show that the key to Boston's success was creating an interdisciplinary citywide movement. The city's movement-- made up of educators, community leaders, police officers, emergency room workers, activist teens, teen and family member survivors of violence, and many others-- worked for more than ten years to implement multifaceted preventive programs that confronted each risk factor for youth violence, including

• Positive...