
    No. 734.
    No. 735.
    No. 736.
    Peterson v. United States; Niznik v. United States; and Comodor v. United States.
    C. A. 6th Cir.
    
      Hayden C. Covington, Victor F. Schmidt and Grover C. Powell for petitioners.
    
      Solicitor General Perlman, Assistant Attorney General Campbell, Robert S. Erdahl and Philip R. Monahan for the United States.
   Certiorari denied.  