The fact that people of all colors have been ensnared by the drug war helps to preserve the system as a whole from serious critique, as it creates the impression - at a glance - that the war is being waged in an unbiased manner, even when nothing could be further from the truth.

There is a tremendous amount of confusion and denial that exists about mass incarceration today, and that is the biggest barrier to movement building. As long as we remain in denial about this system, movement building will be impossible. Exposing youth in classrooms to the truth about this system and developing their critical capacities will, I believe, open the door to meaningful engagement and collective, inspired action.

I think it's important to encourage young people to tell their own stories and to speak openly about their own experiences with the criminal justice system and the experiences of their family. We need to ensure that the classroom environment is a supportive one so that the shame and stigma can be dispelled.

I do believe that something akin to a racial caste system is alive and well in America.

Today it is perfectly legal to discriminate against criminals in nearly all the ways that it was once legal to discriminate against African Americans. Once you're labeled a felon, the old forms of discrimination - employment discrimination, housing discrimination, denial of the right to vote, denial of educational opportunity, denial of food stamps and other public benefits, and exclusion from jury service - are suddenly legal.

The fact that more than half of the young black men in any large American city are currently under the control of the criminal justice system (or saddled with criminal records) is not - as many argue - just a symptom of poverty or poor choices, but rather evidence of a new racial caste system at work.

Mass incarceration is the most pressing racial justice issue of our time.