An incubator for producing plague bacillus by Japanese army is released by the Museum of Evidence of War Crimes August 18, 2017. New evidence of human experiments and germ war crimes by Japan's notorious Unit 731 were released by the museum Friday, including written confessions of germ war criminals, a transportation record of human experiments, old photos of the unit soldiers and an incubator for producing plague bacillus. (Photo: China News Service/Wang Su)
