Youth and violence Prevention 20 Social conditions 12 Youth 12 SOCIAL SCIENCE 10 Violence 9 Gang prevention 7 Gangs 7 Juvenile delinquency 6 Children and violence 5 Family violence 5 General 5 School violence 5 Substance abuse 5 Teenagers 5 Firearms 4 Firearms and crime 4 History 4 Law and legislation 4 Marginality, Social 4 Race relations 4 Social aspects 4 Violence in adolescence 4 Violence in mass media 4 At-risk youth 3 Attitudes 3 Bullying 3 Crimes against 3 Firearms ownership 3 Gang members 3