Back in the United States, prisoners at the Louisiana State Penitentiary in Angola have gone on hunger strike after they were kept in solitary confinement past the end of their disciplinary sentences. The prisoners are being held in unheated 9-by-6-foot cells with only a jumpsuit and a sheet, despite record low temperatures this month. They’re allowed just one hour of outside access per day. United Nations human rights experts have repeatedly said solitary confinement practices in the U.S. amount to torture.