This is from 2007, but this portion in the article is something everyone needs to know:
Consider this: According to a 2006 report by the American Civil Liberties Union, African Americans make up an estimated 15% of drug users, but they account for 37% of those arrested on drug charges, 59% of those convicted and 74% of all drug offenders sentenced to prison. Or consider this: The U.S. has 260,000 people in state prisons on nonviolent drug charges; 183,200 (more than 70%) of them are Black or Latino.
Here’s another report by the ACLU:
There are 2.3 million people behind bars in this country — that is triple the amount of prisoners we had in 1987 — and 25 percent of those incarcerated are locked up for drug offenses. Taxpayers spend almost $70 billion a year on corrections and incarceration. The war on drugs has also been a war on communities of color. The racial disparities are staggering: despite the fact that whites engage in drug offenses at a higher rate than African-Americans, African-Americans are incarcerated on drug charges at a rate that is 10 times greater than that of whites.