The vastly different sentences afforded drunk drivers and drug offenders tells us who is viewed as disposable - someone to be purged from the body politic - and who is not. Drunk drivers are predominately white and male.

It's important to teach students about the reality of the system, that it is in fact the case that they are being targeted unfairly, that the rules have been set up in a way that authorize unfair treatment of them, and how difficult it is to challenge these laws in the courts. We need to teach them how our politics have changed in recent years, how there has been, in fact, a backlash. But we need to couple that information with stories of how people in the past have challenged these kinds of injustices, and the role that youth have played historically in those struggles.

Yet far from putting any meaningful constraints on law enforcement in this war, the U.S. Supreme Court has given the police license to stop and search just about anyone, in any public place, without a shred of evidence of criminal activity, and it has also closed the courthouse doors to claims of racial bias at every stage of the judicial process from stops and searches to plea bargaining and sentencing.

Like Jim Crow (and slavery), mass incarceration operates as a tightly networked system of laws, policies, customs, and institutions that operate collectively to ensure the subordinate status of a group defined largely by race.

The United States imprisons a larger percentage of its black population than South Africa did at the height of apartheid. In Washington, D.C., our nation’s capitol, it is estimated that three out of four young black men (and nearly all those in the poorest neighborhoods) can expect to serve time in prison.

I think it's critically important for people to understand that this system of mass incarceration governs not just those who find themselves in prison on any given day, but also all those who are in jail, on probation or parole, as well as all those who are just months away from being locked up again because they are unable to find work or housing due to their criminal record.

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.