HEARING BEFORE SUBCOMMITTEE NO. 4 OF THE COMMITTEE ON THE DISTRICT OF COLUMBIA HOUSE OF REPRESENTATIVES NINETIETH CONGRESS FIRST SESSION ON H.R. 12328, H.R. 12605, H.R. 12721 and H.R. 12557 RELATING TO THE PROHIBITION OF RIOTS AND INCITEMENT TO RIOT IN THE DISTRICT OF COLUMBIA Printed for the use of the Committee on the District of Columbia 84-926 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON 1967 DIVISION |