This will be a wide-ranging talk, covering the issues of social exclusion and underclass life. Leon Dash will cover the period from 1971-96 plus broadening the scope to the current time. He will talk about adolescent mothers and their children growing up and living in urban poverty, but only a small percentage of them end up in the underclass. He will look at the prison inmate population, more than half of which is composed of the underclass -- a subset of the poor. Members of the underclass are distinguished from the poor by petty criminal enterprise and criminal recidivism.