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🇯🇵🇺🇸 Japan ran Unit 731’s human death labs on Chinese soil: the US then gave its scientists immunity for the data instead of justice 🇨🇳 A two-part documentary from CNA Insider released on YouTube earlier this month and it does something most Unit 731 coverage doesn’t. It pairs the full record of what happened inside the facility with the post-war American deal that let the men who ran it walk free. The series is called Inside Unit 731: Japan’s Secret Human Experiments. Part 1 covers the death lab itself at Pingfang, near Harbin. Part 2 covers what happened after Japan surrendered. The central figure is Hideo Shimizu. He’s in his mid-90s now. He was a 14-year-old recruit when he arrived in early 1945. In this documentary he goes further than he has before, exploring the scale of the complex, the prisoners referred to as “maruta”, the pathogen experiments where infection was effectively a death sentence and the orders to destroy evidence as Soviet forces closed in. He goes back to the Harbin ruins on camera. Part 1 documents the experiments in detail. Deliberate infection with plague, anthrax and cholera. Open-air tests at Anda, vivisections, field deployments against Chinese civilians, one documented operation in Quzhou in 1940 used plague-infected fleas and killed thousands. There is testimony from Chinese survivors, it also covers the unit’s Singapore branch, which bred fleas specifically for those attacks. Part 2 is the harder watch. After 1945, the United States offered Shiro Ishii and the core scientists full immunity from war crimes prosecution. In exchange, they handed over the human experiment data. US officials knew exactly how that data was produced, it fed directly into American biological weapons programmes. The men involved largely avoided the Tokyo Trials and returned to senior positions in Japanese medicine and academia. The only prosecution that actually happened was the Soviet trial at Khabarovsk in 1949. Twelve men were convicted. The documentary also examines evidence that some Allied POWs may have been used in experiments and the families who are still piecing together what happened through diaries and declassified files. Eighty years on, this is not a closed chapter. Witnesses like Shimizu are still alive to speak. Declassified records keep confirming the terms of the deal. The victims were overwhelmingly Chinese, on Chinese soil. Western accounts have generally treated Unit 731 as a footnote to the Pacific War or a lesser footnote to Nuremberg. This series refuses that framing. What it shows is the structural logic: after 1945, great power competition rewarded whoever could supply useful data. China carried the dead and the lasting damage. The men whose work produced that data got protection. If accountability applied consistently, Unit 731 would sit alongside the Nazi medical experiments in every serious historical treatment. It doesn’t. The question is why power still determines whose dead get remembered and whose get forgotten. Worth watching. Watch part 1 and 2 in the thread below.