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WASHINGTON, : Owen Lattimore (L) passes Senator Joseph McCarthy after ex-Communist Louis F. Budenzho called him a member of a Communist spy cell in testimony before the House Un-American Activities Committee in Washington, 20 April 1950. An anti-Communist witchhunt instigated by John Parnell Thomas and Joseph McCarthy, known as McCarthyism, would generate denunciations in the movie industry, causing many to flee America for exil in Europe and ruined many careers. (Photo credit should read AFP/AFP via Getty Images)

WASHINGTON, :  Owen Lattimore (L) passes Senator Joseph McCarthy after ex-Communist Louis F. Budenzho called him a member of a Communist spy cell in  testimony before the House Un-American Activities Committee in Washington, 20 April 1950. An anti-Communist witchhunt instigated by John Parnell Thomas and Joseph McCarthy, known as McCarthyism, would generate denunciations in the movie industry, causing many to flee America for exil in Europe and ruined many careers. (Photo credit should read AFP/AFP via Getty Images)

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Senator Joseph R. McCarthy (left), discusses the State Department's Voice of America program with newsreporters in New York, while associates David Schine (center) and Roy Cohn (right) stand by, New York, New York, 1953. (Photo by Underwood Archives/Getty Images)

Senator Joseph R. McCarthy (left), discusses the State Department's Voice of America program with newsreporters in New York, while associates David Schine (center) and Roy Cohn (right) stand by, New York, New York, 1953. (Photo by Underwood Archives/Getty Images)

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2nd December 1953, Washington, USA, House of Un-American Activities Committee Hearings, Senator Joseph McCarthy is pictured with his dispatch case bulging, and members of the Committee, including (left to right): Roy Cohn; Harold E Rainville, Administrative Assistant to Senator Dirksen, Illinois; McCarthy; David Schine (at back); Robert Jones, Administrative Assistant to Senator Potter (Michigan); and Frank Carr, Director of the Committee (Photo by Popperfoto via Getty Images/Getty Images)

2nd December 1953, Washington, USA, House of Un-American Activities Committee Hearings, Senator Joseph McCarthy is pictured with his dispatch case bulging, and members of the Committee, including (left to right): Roy Cohn; Harold E Rainville, Administrative Assistant to Senator Dirksen, Illinois; McCarthy; David Schine (at back); Robert Jones, Administrative Assistant to Senator Potter (Michigan); and Frank Carr, Director of the Committee  (Photo by Popperfoto via Getty Images/Getty Images)

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Attorney Roy Cohn talking to American senator Joseph McCarthy (right), circa 1954. (Photo by Keystone/Hulton Archive/Getty Images)

Attorney Roy Cohn talking to American senator Joseph McCarthy (right), circa 1954. (Photo by Keystone/Hulton Archive/Getty Images)

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American politician Joseph McCarthy (1908 ? 1957), Republican senator from Wisconsin, testifies against the US Army during the Army-McCarthy hearings, Washington, DC, June 9, 1954. McCarthy stands before a map which charts Communist activity in the United States. (Photo by Getty Images)

American politician Joseph McCarthy (1908 ? 1957), Republican senator from Wisconsin, testifies against the US Army during the Army-McCarthy hearings, Washington, DC, June 9, 1954. McCarthy stands before a map which charts Communist activity in the United States. (Photo by Getty Images)