No. 21273. Argued January 26, 1968. Decided September 10, 1968. Petition for Rehearing Denied November 5, 1968. Mr. Michael Nussbaum, Washington, D.C., with whom Messrs. Leonard Braman and Earl H. Davis, Washington, D.C., were on the brief, for appellants. Mr. Cornelius H. Doherty, Washington, D.C., for appellee. Before BAZELON, Chief Judge, and McGOWAN and ROBINSON, Circuit Judges. PER CURIAM: In controversy on this appeal is the scope of judicial discretion to deny a request, pursuant to Rule 28(b)