Newscopy: "RELUCTANT WITNESSES--Chinatown leaders, subpenaed to appear before the federal grand jury, cool their heels today in a corridor of the Post Office Building. One of them sits on records of his family association, which also were under subpoena. The grand jury session ground to an abrupt halt when the second witness challenged validity of the subpoena and was promptly cited to show cause before Federal Judge Oliver J. Carter." .
