The Courage of Galileo: Joseph Needham and the ‘Germ Warfare’ Allegations in the Korean War

In 1952, during the Korean War, it was claimed that United States forces were using bacteriological warfare against China and North Korea. The allegation was dismissed by western governments, but a six‐strong international scientific commission (ISC) visited China and concluded that bacteriological warfare had taken place. On their return, the scientists, of whom the best known was the British biochemist Joseph Needham, were depicted as dupes or fellow‐travellers. Interest in this subject was revived in 1998 with revelations from Moscow archives which seemed to prove that the commission was hoaxed, although a monograph published in the same year was more sympathetic to the ISC's conclusions. To date, however, Needham's own papers have not been consulted, and full use has not been made of the foreign office papers. On the basis of these archival sources, this article shows how Needham was drawn reluctantly into the limited and flawed work of the ISC. It also shows how the British government, concerned at the possible impact of the ISC report, sought to mobilize politicians, journalists and academics to refute it. The article concludes that Needham's personal courage is not in doubt, but that his role in the ISC — and the defence of its conclusions — exacted a high personal cost.