The emphasis is on juvenile delinquency experiments dealing with early identification and intensive treatment, community and neighborhood factors in juvenile delinquency, youth service bureaus, the Neighborhood Youth Corps, and school-based programs. The authors believe there is little indication that juvenile delinquency can be prevented among high-risk youth, and that programs that seem to have promise for youth in one setting may fail in another setting. They also examine problems associated with juvenile delinquency prevention program implementation and financing and discuss theoretical, research, and policy implications of juvenile delinquency prevention. Finally, the authors note choices related to values, beliefs, and commitments at the personal level and in schools, such as religion, social revolution, and law enforcement, that affect juvenile delinquency. 56 references and 3 figures