Thirty or so years ago, I reported from a New York state prison for juvenile delinquents on how American teens were being held behind bars without any consideration for their constitutional rights. To what extent has this changed in states today?In a Jan. 1 editorial, The New York Times provided the answer: "The juvenile justice system in the United States is supposed to focus on rehabilitation for young offenders. But for generations, it has largely been a purgatory, failing to protect them or give them the help and counseling they need to become law-abiding adults.”This editorial followed a vital story about Shelby County, Tenn., and the Department of Justice in the Dec. 18, 2012, Times.