opinion: O’BRIEN et al. v. UNITED STATES.
  No. 823.
  Decided March 20, 1967.
  Philip A. Gillis for O’Brien and Ivan Barns for Parisi, petitioners.
  Solicitor General Marshall, Assistant Attorney General Vinson, Beatrice Rosenberg and Mervyn Hamburg for the United States.
  ■ Per Curiam.
  The petition for a writ of certiorari is granted, judgment vacated and the case is remanded to the United States District Court for the Eastern District of Michigan for a new trial should the Government seek to prosecute petitioners anew. Black v. United States, 385 U. S. 26.