 <unk> Efron of the Los Angeles Times warned that the bitter row over Iris Chang 's book may leave Westerners with the " <unk> " that little has been written in Japan about the Nanjing Massacre , when in fact the National Diet Library holds at least 42 books about the Nanjing massacre and Japan 's wartime misdeeds , 21 of which were written by liberals investigating Japan 's wartime atrocities . In addition , Efron noted that geriatric Japanese soldiers have published their memoirs and have been giving speeches and interviews in increasing numbers , recounting the atrocities they committed or witnessed . After years of government @-@ enforced denial , Japanese middle school textbooks now carry accounts of the Nanjing massacre as accepted truth . Fogel also writes : " Dozens of Japanese scholars are now actively engaged in research on every aspect of the war .... Indeed , we know many details of the Nanjing massacre , Japanese sexual exploitation of ' comfort women , ' and biological and chemical warfare used in China because of the trailblazing research " of Japanese scholars . 
