On June 30, 1945, more than 700 Chinese slave laborers revolted against their factory in the Japanese city of Hanaoka. In response, the Japanese civil defense forces mobilized 20,000 police, killing 418 of the protesting workers. Yesterday in Hanaoka, a memorial hall for this atrocity was finally opened. Huanqiu Shibao has the story, and Zhonghua Wang has photos.
Finally, on the subject of peace museums in Japan, no scholar has done more than Takeshi Yoshida, and this essay of his Japan Focus gives some play to the Hanaoka controversy.