RUSSIAN ESPIONAGE IN CANADA CALLED HIGHLY ORGANIZED; Official Report Says Several Parallel Rings Sought and Got Defense Data WORKED IN U.S., BRITAIN Agents Kept Ambassador in Ottawa Ignorant of Tasks of at Least 3 Groups Russian Spies Highly Organized Ambassador Not Involved Only Small Sums Paid U.S. Gathering Evidence Scholar at Los Angeles Named
Official Canadian rept quoted as saying USSR agent sent uranium 235 sample to Moscow