An inmate reads a book in a gymnasium where they are housed due to overcrowding at the California Institution for Men state prison in Chino, California, June 3, 2011. The US Supreme Court has ordered California to release more than 30,000 inmates over the next two years or take other steps to ease overcrowding in its prisons to prevent "needless suffering and death." California's 33 adult prisons were designed to hold about 80,000 inmates and now have about 145,000. The United States has more than 2 million people in state and local prisons. It has long had the highest incarceration rate in the world. [Photo/Agencies]

Inmates stand in a gymnasium where they are housed due to overcrowding at the California Institution for Men state prison in Chino, California, June 3, 2011. [Photo/Agencies]