Judge Jack Weinstein, 90, was appointed by President Lyndon B. Johnson to the federal bench in Brooklyn, N.Y., more than four decades ago. The federal judicial system is a case study of how the U.S. will cope with a graying America. (Associated Press)

Judge Jack Weinstein, 90, was appointed by President Lyndon B. Johnson to the federal bench in Brooklyn, N.Y., more than four decades ago. The federal judicial system is a case study of how the U.S. will cope with a graying America. (Associated Press)