a more than half of young black men in the united states do not finish high school. many grow up without fathers and in neighborhoods with gangs, drugs and violence. sixty percent of those who drop out of school have spent time in prison by the age of thirty-five. joe marshall co-founded the omega boys club in san francisco, california, twenty-three years ago. mr. marshall tries to give boys — and girls — a safe refuge and a chance at a better future. every week, he has two basic messages for his young students: "stop the violence" and "don"t do drugs." mr. marshall taught math in middle school and expected to see his best students go to college.