Oh God, what have we done?
Jackson Lears: The Strange Career of Robert Oppenheimer, 20 December 2012
“... American school of physics, worthy of the best in Europe. One of his partners in this was Ernest Lawrence, whose efforts to split the atom with his cyclotron were attracting a lot of publicity. But by the early 1930s, quantum physicists already knew that the atom could be split with less energy through ‘quantum tunnelling’ – the Russian physicist ... ”