At the time of the Korean War I had been unable to believe in the allegations brought by Professor Joseph Needham and others charging the Americans with having used that war as a proving-ground for new biological and chemical weapons of mass destruction. I owe Professor Needham and the others my sincere apologies for thinking these charges too extreme. By 1963, I had become convinced of the justice of these allegations since it was clear that similar ones must be brought against the United States in Vietnam.
Source: The Autobiography of Bertrand Russell, v.3 chap. 4.
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