opinion: Per Curiam.
  The judgment is vacated and the cases are remanded to the United States Court of Appeals for the Fourth Circuit for consideration of the question whether they are moot.
choices: stay, petition, or motion granted affirmed reversed reversed and remanded vacated and remanded affirmed and reversed (or vacated) in part affirmed and reversed (or vacated) in part and remanded vacated petition denied or appeal dismissed modify remand unusual disposition