Mark Binelli, Inside America’s Toughest Federal Prison. The New York Times, 26 March 2015. “For years, conditions inside the United States’ only federal supermax facility [the ADX in Florence, Colorado] were largely a mystery. But a landmark lawsuit is finally revealing the harsh world within…. The ADX is the highest-security prison in the country. It was designed to be escape-proof, the Alcatraz of the Rockies, a place to incarcerate the worst, most unredeemable class of criminal — ‘a very small subset of the inmate population who show,’ in the words of Norman Carlson, the former director of the Federal Bureau of Prisons, ‘absolutely no concern for human life.’… Inmates at the ADX spend approximately 23 hours of each day in solitary confinement.”