No. 72-1115. Argued September 7, 1972. Decided October 13, 1972. William L. Corbett, Washington, D.C., Atty., with whom Peter G. Nash, Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Allison W. Brown, Jr., Washington, D.C., Atty., were on brief, for petitioner. Vernon C. Stoneman, Boston, Mass., with whom Seth M. Kalberg, Jr., and Stoneman Chandler, Boston, Mass., were on brief, for respondent. Before COFFIN, Chief Judge, McENTEE, Circuit Judge, and HAMLEY, Senior Circuit Judge. Of the