Red spies in America

"When the United States established diplomatic ties with the Soviet Union in 1933, it did more than normalize relations with the new Bolshevik state - it opened the door to a parade of Russian spies. In the 1930s and 1940s, Soviet engineers and technicians, under the guise of international cooperation, reaped a rich harvest of intelligence from our industrial plants. Factory layouts, aircraft blueprints, fuel formulas - all were grist for the Soviet espionage mill. And that, as Katherine Sibley shows, was just the beginning."--Jacket.