forced to destroy their research and all other evidence of the atrocities happening there. Dr. Ishii initially orders his subordinates and their families to commit suicide, but is persuaded instead to evacuate them and only commit suicide if captured. However, he makes it clear that secrecy is to be maintained, with dire consequences. Japanese troops gather at a train station to be transported out of China. One of the Chinese prisoners, having disguised himself and escaped with a group of soldiers, is discovered by an officer. During a short scuffle in which he kills the officer before being killed himself, his blood stains the Japanese flag, to the horror of the Youth Corps. The train leaves the station. The closing passages reveal that Dr. Ishii cooperates with the Americans, giving them his research and agreeing to work for them. Years later, he is moved to the Korean front, and biological weapons appear on the battlefield shortly thereafter. The Youth Corps involved with 731 are revealed to have led hard lives after the war, but kept the vow that none of the atrocities they witnessed would be revealed or discussed to the public. Cast Controversy Though Mou claims he was trying to depict historical accuracy with the film, he has been criticized by Hong Kong critics that the film's appearance as an exploitation film negates any educational value involving a historical atrocity, and Japanese critics deemed the film as anti-Japan propaganda. American horror critics have deemed the film as genuinely horrifying, but lacked in writing, narrative structure, and agreed with Hong Kong critics regarding the educational value and has no official US release. Because of its graphic content, the film has suffered mass controversy with censors all over the world. It was originally banned in Australia and caused public outcry in Japan to such an extent that director Mou even received threats on his life. The film was given several minutes of mandated cuts to be allowed a release in the United Kingdom. The film garnered further controversy for its use of what Mou claims to be actual autopsy footage of a young boy and also for a scene in which a live cat appears to be thrown into a room to be eaten alive by hundreds of frenzied rats. Although in the 2010 documentary Black Sunshine: Conversations With T.F. Mou, Mou confessed that the cat was tired after participation in