"We've committed many war crimes in Vietnam - but I'll tell you something interesting about that. We were committing war crimes in World War II, before the Nuremberg trials were held and the principle of war crimes was stated."
George Wald was an American biologist and physiologist known for research on visual pigments in the retina. He shared the 1967 Nobel Prize in Physiology or Medicine for discoveries concerning the primary physiological and chemical visual processes in the eye. He taught for decades at Harvard University.