The most significant work was done by Eugene Wigner (who came from Hungary), George Gamow (Russia), Felix Bloch (Switzerland), Hans Bethe (Germany), Edward Teller (Hungary), and Victor Weisskopf (Austria).

FORBES: A Veterans Day Story: Immigrants and the Atomic Bomb

In addition, four of the nuclear scientists who came to the United States from Europe in the 1930s later received a Nobel Prize for physics: Felix Bloch, born in Switzerland, won it in 1952, Emilio Segre (Italy) won in 1959, and Maria Mayer (Poland) and Eugene Wigner (Hungary) won the award in 1963.

FORBES: A Veterans Day Story: Immigrants and the Atomic Bomb

Felix S. Bloch, who is suspected of spying for the Soviet Union, actively participated in the Administration's decision earlier this year to relax U.S. policy on technology transfers.

CENTERFORSECURITYPOLICY: Center For Security Policy