
    No. 570.
    McElroy, Secretary of Defense, et al. v. United States ex rel. Guagliardo.
    
      Solicitor General Rankin, Assistant Attorney General White, Harold H. Greene and William A. Kehoe, Jr. for petitioners.
    
      Michael A. Schuchat for respondent.
   United States Court of Appeals for the District of Columbia Circuit. Certio-rari granted.  