Question: Who was a spy for the Solviet Union and was involved with the Manhattan Project?
About the article "Manhattan Project", section "Soviet spies".

Candidate passages:
Harry Gold (11 December 1911 – 28 August 1972) was a laboratory chemist who was convicted of being the “courier” for a number of Soviet spy rings during the Manhattan Project. 
 Elizabeth Bentley—American spy for Soviet Union from 1938 until 1945; in 1945 she defected from Soviet intelligence and became a key informer for the U.S. Whittaker Chambers—admitted Soviet spy in the Ware Group; testified against Alger Hiss Morris Cohen—convicted Soviet spy, subject of Hugh Whitemore's drama for stage and TV "Pack of Lies"; instrumental in relaying atomic bomb secrets to the Kremlin in the 1940s, eventually settling in Moscow where for decades he helped train Soviet agents against the West William Malisoff—(Ph.D.) alleged Soviet spy, purportedly transferred advanced technology to the USSR Isaiah Oggins—(B.A.)
Soviet spy eventually killed by his Soviet masters; he was the subject of the book "The Lost Spy: An American in Stalin's Service" William Perl—alleged Soviet spy convicted for lying about his friendship with executed spy Julius Rosenberg, not convicted of espionage Victor Perlo—(B.A.
1931, M.A.
1933, mathematics) alleged Soviet spy involved in Harold Ware spy ring and Perlo group as shown in Venona list of suspected subversives Juliet Stuart Poyntz—Communist Party USA founder alleged to have spied for the Soviet OGPU, mysteriously disappeared and presumed killed by her Soviet masters William Remington—(M.A.
1940) alleged Soviet spy killed in prison; convicted of perjury, not convicted of espionage Nathaniel Weyl—(B.S.
1931) confessed member of the Ware group of communists who engaged in espionage for the USSR in Washington, D.C.; after leaving the party, he became a conservative and avowed anti-communist Harry Dexter White—alleged Soviet spy who spearheaded the creation of the World Bank and the International Monetary Fund; later revealed allegedly to have been involved with the Silvermaster and Ware groups of communist spies while he was a senior U.S. Treasury official in the Franklin D. Roosevelt and Truman administration Flora Wovschin—alleged Soviet spies as revealed in the Venona project  
Arthur Aleksandrovich Adams (October 25, 1885, Eskilstuna, Sweden – January 14, 1969) – a Soviet spy, Hero of the Russian Federation, who passed to the Soviet Union critical information about the American Manhattan Project. 
Irving Lerner was an American citizen and an employee of the United States Office of War Information during World War II who worked in the Motion Picture Division.
Lerner was allegedly involved in espionage on behalf of Soviet Military Intelligence (GRU); Arthur Adams, a trained engineer and experienced spy who moved to the Soviet Union in 1946, was Lerner's key contact.
In the winter of 1944, a counterintelligence officer caught Lerner attempting to photograph the cyclotron at the University of California, Berkeley Radiation Laboratory, which was part of the Manhattan Project.
The cyclotron had been used in the creation of plutonium and Lerner was acting without authorization.
Lerner resigned and went to work for Keynote Recordings, owned by Eric Bernay, another Soviet intelligence contact.
Arthur Adams, who ran Irving as an agent, also worked at Keynote. 
David Greenglass (born March 2, 1922) was an atomic spy for the Soviet Union who worked on the Manhattan project.
He provided testimony that helped convict his sister and brother-in-law Ethel and Julius Rosenberg, who were executed for their spying activity.
Greenglass served nine and half years in prison.
He later claimed that, at the urging of prosecutors, he lied at the Rosenbergs' trial to protect himself and his wife.