No. 6548. Heard February 9, 1966. Decided March 15, 1966. Warren M. Davison, Washington, D.C., Atty., with whom Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Assoc. Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Marion Griffin, Atty., were on brief, for petitioner. Fernando Ruiz-Suria, San Juan, P.R., for respondent. Before ALDRICH, Chief Judge, and MARIS and COFFIN, Circuit Judges. By designation. COFFIN, Circuit Judge. On this petition for enforcement of an order of the National