The judges of the United States Court of Appeals for the Fourth Circuit. The 19th-century courthouse that houses the United States Court of Appeals for the Fourth Circuit sits across from a CVS and a Dress Barn on a desultory stretch of Main Street in Richmond, Va. The entrance -- peeling ''Pull'' sign, metal detector, dim lobby -- is not awe-inspiring. But upstairs in the courtrooms, beneath the pendulous chandeliers and the oil portraits of former jurists, a hush prevails. Whether or not the judges are on the bench, people whisper. It is as if they tacitly accept that the...