Another scientist on the British nuclear program, Italian Bruno Pontecorvo , was also later found to be sharing information with Moscow. A top-secret British government file on Eric Burhop identifying him as the likely Australian Communist spy within the Manhattan Project. Since the end of the war, Burhop -- like many scientists involved in the Manhattan Project -- had become disillusioned with nuclear weaponry and the rapidly escalating Cold War. A mushroom cloud rises over the British atomic testing range at Maralinga in South Australia in 1956. Fuchs, the confessed atomic spy, was instead convicted of breaching the Official Secrets Act and sentenced to the maximum 14 years in prison.

Source: CNN April 06, 2019 00:11 UTC