Julius Rosenberg, who had married Greenglass' sister, Ethel, in 1939, had become an agent for the Soviet Union (USSR), working under Alexander Feklisov. In September 1944, Feklisov suggested to Rosenberg that he should consider recruiting his brother-in-law, David Greenglass, and his wife. On September 21, 1944, Feklisov reported to Moscow: "They are young, intelligent, capable, and politically developed people, strongly believing in the cause of communism and wishing to do their best to help our country as much as possible. They are undoubtedly devoted to us."Alexander Feklisov, report on David and Ruth Greenglass (September 21, 1944) David wrote to his wife, Ruth: "My darling, I most certainly will be glad to be part of the community project [espionage] that Julius and his friends [the Soviets] have in mind."
