U.S. District Judge Tanya Walton Pratt decided that Indiana’s treatment of mentally ill inmates is not constitutional. The issue, again: isolation units. When human beings are separated from all interaction with other humans, they develop symptoms of insanity. When inmates were already having mental troubles, the isolation confounds the problem. And then the inmates are released into society. The judge stopped short of requiring specific cures to the problem but will be monitoring the system.