sentences:  In October 1951 the U.S. attorney decided that because the contents of the reports did not constitute state secrets, Parsons was not guilty of espionage.The Review Board still considered Parsons a liability because of his historical Marxist affiliations and investigations by the FBI, and in January 1952 they permanently reinstated their ban on his working for classified projects, effectively prohibiting him from working in rocketry.To make a living he founded the Parsons Chemical Manufacturing Company, which was based in North Hollywood and created pyrotechnics and explosives such as fog effects and imitation gunshot wounds for the film industry, and he also returned to chemical manufacturing at the Bermite Powder Company in Saugus.