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'''Martin David Kamen''' (1913 – 2002), was a discoverer of the isotope carbon-14 at the University of California Radiation Laboratory, Berkeley which was part of the [[Manhattan Project]].
Kamen met with [[Grigory Kheifets]] and [[Grigory Kasparov]], [[KGB]] officers at the Soviet San Francisco consulate. He was fired from the Manhattan Project in 1944 when security officers overheard him discussing atomic research with Kheifets.
==Reference==
*Report of 11 January 1944, FBI Silvermaster file, serial 3378;
*“Comintern Apparatus Summary Report”;
*“The Shameful Years: Thirty Years of Soviet Espionage in the Untied States,” 30 December 1951, U.S. Congress, House of Representatives, Committee on Un-American Activities, 39–40.
* John Earl Haynes and Harvey Klehr, ''Venona: Decoding Soviet Espionage in America'', Yale University Press (1999), pgs. 232, 236.
{{DEFAULTSORT:Kamen, Martin}}
[[Category:KGB Agents and Sources]]