Riot police were deployed Wednesday night outside Topo Chico prison in Monterrey, Mexico, where at least 52 people died in rioting and a fire. Francisco Cobos/AFP/Getty Images hide caption
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Many federal inmates have access to email but defense attorneys say they don't trust it, because prosecutors have used those emails as evidence in court. Patrick George/Ikon Images/Getty Images hide caption
Federal regulators will vote on capping the cost of phone calls from prison, which are far more expensive than ordinary calls. iStockphoto hide caption
Inmates Ted Stancil (from left), Steven Bass and Christopher Peeples, with their welding Instructor Jeremy Worley (standing in center) at Walker State Prison in Georgia. The inmates are working toward a welding certificate. Susanna Capelouto/WABE hide caption
The plaintiffs in the case are inmates at Pelican Bay State Prison near Crescent City, Calif. "In the most severe cases," Juan Mendez says, indefinite solitary confinement — like that practiced at Pelican Bay — "can even be considered torture." Rich Pedroncelli/AP hide caption
Observers Hope California Agreement Succeeds In Ending Indefinite Solitary
California has agreed to revise its rules on solitary confinement. This file photo shows a cell in the Secure Housing Unit of Pelican Bay State Prison in Crescent City, California. Reuters /Landov hide caption
Nicklas Trujeque in his solitary confinement cell in New Mexico State Penitentiary. Inmates spend 23 hours a day in these cells, with a one-hour period in an open cell outside. According to the New Mexico ACLU, until recent state reforms, the average length of stay for an inmate here was around three years. Natasha Haverty/For NPR hide caption
Amid Backlash Against Isolating Inmates, New Mexico Moves Toward Change
A part of Eastern State Penitentiary in Philadelphia is shown in 2008. The penitentiary opened in 1829, closed in 1971, and then historic preservationists reopened it to the public for tours in 1994. Matt Rourke/AP hide caption
The Baltimore City Detention Center, seen here in 2013, was found to be riddled with corruption, according to a federal probe. Lloyd Fox/MCT /Landov hide caption
Latandra Ellington, 36, was serving time for tax fraud at Lowell Correctional Institution when she died. Florida Department of Corrections hide caption
Record Number Of Inmate Deaths Has Florida Prisons On The Defensive
Daniel Genis, son of Soviet emigre Alexander Genis, served 10 years in prison for armed robbery. He was released last year, and his essays about life in prison have been widely published. Courtesy of Petra Szabo hide caption
Released From Prison, 'Apologetic Bandit' Writes About Life Inside
New York Mayor Bill de Blasio tours and meets with youth Dec. 17 at Second Chance Housing on Rikers Island in New York City. Second Chance Housing is an alternative for incarcerated adolescents, instead of punitive segregation, also known as solitary confinement. Susan Watts/Getty Images hide caption
The Lafayette Parish Correctional Center in downtown Lafayette, La. By most counts, Louisiana has the highest incarceration rate in the country, but sentencing reformers have loosened some of the state's mandatory minimum sentences and made parole slightly easier to get. Denny Culbert for NPR hide caption
The U.S. holds more prisoners in solitary confinement than any other democratic country, according to critics of the treatment. Here, an immigrant detainee makes a call from his "segregation cell" at a detention facility in Adelanto, Calif., last November. John Moore/Getty Images hide caption