SCMP: Archaeologists have located an underground research facility where Japanese military scientists conducted “horrific biological weapon experiments” on human subjects (US granted them Immunity from prosecution) during WWII in northeast China 考古學家在中國東北找到了一個地下研究設施，日本軍事科學家在二戰期間在那裡對人體進行了“可怕的生物武器實驗”(美國授予他們免於起訴)