California’s prisons are so overcrowded that the state is violating inmates’ constitutional rights, three federal judges ruled today in a decision imposing a cap on the prison population that will force the state to release nearly 43,000 prisoners over the next two years....The ruling by three federal judges stems from challenges by two inmates alleging that the state’s network of 33 prisons is so overcrowded that they are denied adequate health care and treatment of mental illnesses. California’s prisons, designed to hold 84,000 inmates, house 158,000, much of the overflow contained in converted sports facilities arrayed with triple-tier bunks. That...