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'''Martin David Kamen''' (1913 – 2002), was a discoverer  of the isotope [[Carbon dating|carbon-14]] at the University of California Radiation Laboratory, Berkeley which was part of the [[Manhattan Project]].

'''Martin David Kamen''' (1913 – 2002), was a discoverer  of the isotope [[Carbon dating|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.  On July 1, 1994 Kheofets recieved from Kamen classified information on the American uranium stockpile and departed three days later to the Soviet Union with the infromation. <ref>US House of Representatives, 80st Congress, Special Session, [[Committee on Un-American Activities]], Report on Soviet Espionage Activities in Connection with the Atom Bomb, September 28, 1948 (US Gov. Printing Office) pp. 181, 182.</ref>  Kaman was fired from the Manhattan Project in 1944 after security officers overheard him discussing atomic research with Kheifets.

Kamen met with [[Grigory Kheifets]] and [[Grigory Kasparov]], [[KGB]] officers at the Soviet San Francisco consulate.  On July 1, 1944 Kheofets recieved from Kamen classified information on the American uranium stockpile and departed three days later to the Soviet Union with the infromation. <ref>US House of Representatives, 80st Congress, Special Session, [[Committee on Un-American Activities]], Report on Soviet Espionage Activities in Connection with the Atom Bomb, September 28, 1948 (US Gov. Printing Office) pp. 181, 182.</ref>  Kaman was fired from the Manhattan Project in 1944 after security officers overheard him discussing atomic research with Kheifets.