David Greenglass (b. 1922 in New York City) was recruited into Soviet espionage by his sister Ethel Rosenberg, who with her husband Julius Rosenberg were executed for committing conspiracy to commit espionage in 1953 for providing American nuclear secrets to the Soviet Union. Greenglass shared an interest in Communism with the Rosenbergs. He married Ruth Printz in 1942, and they joined the Young Communist League shortly before Greenglass entered the U.S. Army in 1943. A talented machinist at the Army base in Jackson, Mississippi, Greenglass was promoted to sergeant assigned to the secret Manhattan Project, the wartime project to develop the first nuclear weapons. He was first stationed at the massive uranium enrichment facility at Oak Ridge, Tennessee, and later worked at the secret Los Alamos laboratory in New Mexico. He later told how he slept through the first test of the atom bomb and made artificial diamonds at the laboratory. 1922 (MCMXXII) was a common year starting on Sunday (see link for calendar). ... Nickname: The Big Apple Motto: Official website: City of New York Location [[Image:|250px|250px|Location of City of New York, New York]] Location in the state of New York Government Counties (Boroughs) Bronx (The Bronx) New York (Manhattan) Queens (Queens) Kings (Brooklyn) Richmond (Staten Island) Mayor Michael Bloomberg (R... The Rosenbergs Ethel Greenglass Rosenberg (1915-1953) and Julius Rosenberg (1918-1953) were American Communists who captured and maintained world attention after being tried, convicted, and executed for spying for the Soviet Union. ... The Rosenbergs Ethel Greenglass Rosenberg (1915-1953) and Julius Rosenberg (1918-1953) were American Communists who captured and maintained world attention after being tried, convicted, and executed for spying for the Soviet Union. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... This article is about communism as a form of society and as a political movement. ... The Young Communist League was or is the name used by the youth wing of various Communist parties around the world such as the Young Communist League in Britain and the Young Communist League, USA. In the Soviet Union the youth organization under control of the Communist Party of the... Jackson skyline Motto: Nickname: The Best of the New South and The Bold, New City Map Political Statistics Founded 1822 Incorporated Hinds County Mayor Frank Melton Geographic Statistics Area  - Total  - Land  - Water 276. ... Control panels and operators for calutrons at the Y-12 Plant in Oak Ridge, Tennessee. ... The mushroom cloud of the atomic bombing of Nagasaki, Japan, 1945, rose some 18 km (11 mi) above the hypocenter. ... Oak Ridge is a city located in Anderson and Roane Counties in eastern Tennessee, about 25 miles west of Knoxville. ... Los Alamos National Laboratory, aerial view from 1995. ... Official language(s) None, English and Spanish de facto Capital Santa Fe Largest city Albuquerque Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 5th 315,194 km² 550 km 595 km 0. ...

After Julius Rosenberg told Ruth Greenglass that the Manhattan Project was seeking to produce the first atom bomb, David Greenglass began to pass nuclear secrets to the Soviet Union via Julius from November 1944 until he left the military in 1946. He defended himself in court by stating that when he began his work, the Soviet Union was still an ally of the United States. After the war Greenglass, his brother Bernie, and Julius Rosenberg ran a small machine shop in Manhattan, which had failed by 1947. Ruth Greenglass Ruth Printz was born in 1925 in New York City, and grew up in the same neighborhood as her future husband, David Greenglass. ... The mushroom cloud of the atomic bombing of Nagasaki, Japan, in 1945 lifted nuclear fallout some 18 km (60,000 feet) above the epicenter. ...

In 1950, UK and US intelligence agencies had discovered that a Los Alamos theoretical physicist, Klaus Fuchs, had also been a spy for the USSR during the war. Through Fuchs' confession, they found that one of his American contacts had been a man from Brooklyn named Harry Gold, who had then passed Fuchs' information on to a Soviet agent, Anatoli Yakovlev, who then would pass it on to his controllers in the USSR. Through Gold, the FBI's trail led to Greenglass and the Rosenbergs, who had also used Gold as a courier. When Fuchs was first captured, Julius gave the Greenglasses $4,000 to finance an escape to Mexico. But they went to the Catskills instead and used the money to seek out legal advice. Klaus Fuchs ID badge photo from Los Alamos. ... Harry Gold born 12 December 1910 in Philadelphia, Pennsyvania. ... Anatoli A. Yakovlev (whose real name was was Yatskov) General Consul of the Soviet Unions legation in New York City in the 1940s. ... Catskill State Park as seen from Overlook Mountian The Catskill Mountains are an extension of the Appalachian Mountains into New York State. ...

Greenglass was arrested by the FBI for espionage in July 1950 and quickly implicated his brother-in-law. He testified against the Rosenbergs in court in 1951 as part of an immunity agreement so his wife Ruth could stay with their two children. He told the court, "I had a kind of hero worship there [with Julius Rosenberg] and I did not want my hero to fail..."

During his testimony in 1951, Greenglass related in detail the secrets he passed on to the Soviet Union through Julius and Gold. He described his work on the implosion lenses used for the "Trinity" test and the bomb used on Nagasaki, "Fat Man." At first this was a matter of difficulty for the prosecution, who wanted Greenglass to testify in open court about the secrets he had given—something which would by definition make them no longer "secret." The Atomic Energy Commission decided that the "implosion" concept could be declassified for the trial, and limited all discussion to the weapons used in World War II (fearing that Greenglass may have seen prototypes for future weapons while at Los Alamos). Federal Judge Irving Kaufman at first made all spectators and news reporters leave the room when Greenglass began testifying about his "secrets", but ten minutes later invited the news reporters back in, asking them to use their discretion in reporting on Greenglass's testimony. Greenglass also testified that Rosenberg had given the Russians information about the proximity fuze and a speculative space platform which would sit between the Earth and the Moon. An early stage in the Trinity fireball. ... A post-war Fat Man model. ... Almost a year after World War II ended, Congress established the United States Atomic Energy Commission to foster and control the peace time development of atomic science and technology. ... Look up Proximity fuze in Wiktionary, the free dictionary A proximity fuze (also called a VT fuze) is a fuze that is designed to detonate an explosive automatically when close enough to the target to destroy it. ...

After the testimony, in an odd and unexplained legal action, Rosenberg attorney Emanuel A. Bloch had the Greenglass testimony impounded in the name of "national security" (it would not be released until 1966). During the trial, Bloch claimed Greenglass wanted revenge for their business failure and attempted to discredit his character and testimony (a legal tactic which failed with the trial judge). Greenglass was sentenced to 15 years in prison, served 10 years, and later reunited with his wife.

After his release in 1960, the Greenglasses lived in New York City under an assumed name. In 1996, Greenglass admitted to New York Times reporter Sam Roberts that he had lied under oath about the extent of his sister Ethel's involvement in the plot, wanting to protect his wife, Ruth. At the trial, he testified that Ethel Rosenberg typed his notes to give to the Russians, when it was probably Ruth. Soviet intelligence officers later said they believed Ethel was not an active part of Julius' espionage ring, and Greenglass' crude drawings were not very useful to them since they already possessed Klaus Fuchs' superior information. Greenglass explained, "Look, I had a wife and two children. I didn’t care so much what happened to me, but I cared what happened to them.” When Roberts asked Greenglass if he would have done anything differently, he replied, "Never." Nickname: The Big Apple Motto: Official website: City of New York Location [[Image:|250px|250px|Location of City of New York, New York]] Location in the state of New York Government Counties (Boroughs) Bronx (The Bronx) New York (Manhattan) Queens (Queens) Kings (Brooklyn) Richmond (Staten Island) Mayor Michael Bloomberg (R... Klaus Fuchs ID badge photo from Los Alamos. ...

Reference

• Robert Lamphere and Tom Shachtman, The FBI-KGB War (New York: Random House, 1986)

See also

• Manhattan Project
• Julius and Ethel Rosenberg
• Klaus Fuchs
• Soviet atomic bomb project

Control panels and operators for calutrons at the Y-12 Plant in Oak Ridge, Tennessee. ... The Rosenbergs Ethel Greenglass Rosenberg (1915-1953) and Julius Rosenberg (1918-1953) were American Communists who captured and maintained world attention after being tried, convicted, and executed for spying for the Soviet Union. ... Klaus Fuchs ID badge photo from Los Alamos. ... Andrei Sakharov (left) with Igor Kurchatov (right) The Soviet project to develop an atomic bomb began during World War II in the Soviet Union. ...

External links

• Famous Trials by Doug Linder

• Children of the Manhattan Project

• Spartacus

• Ethel Rosenberg

• Crime Library