[LeoXiao]

Originally Posted by Xellos-_^

None of the leadership from Unit-731 was ever punish. Several went on to found Green Cross Pharmaceutical.

If I remember correctly that was because the Americans took the head researchers away to work on US biweapons.

There is saying sorry and actually meaning it.

Official government response in Japan

Since the end of the US Occupation, the Japanese government has repeatedly apologized for its prewar behavior in general, but specific apologies and indemnities are determined on the basis of bilateral determination that crimes occurred, which requires a high standard of evidence. For example, compensation was paid to South Korea for comfort women-related crimes in the 1965 Treaty on Basic Relations between Japan and the Republic of Korea. Unit 731 presents a special problem, since unlike Nazi human experimentation which is extremely well documented, the activities of Unit 731 are known only from the testimonies of former unit members, and testimony cannot be employed to determine indemnity in this way.

In accordance with this principle, Japanese history textbooks usually contain references of Unit 731; however, Saburo Ienaga's New History of Japan included a detailed description, based on officers' testimony. The Ministry for Education attempted to remove this passage from his textbook before it was taught in public schools, on the basis that the testimony was insufficient. The Supreme Court of Japan ruled in 1997 that the testimony was indeed sufficient and that requiring it to be removed was an illegal violation of freedom of speech.

I'd say they pretty damn well mean it. From the same article:

In 1997, the international lawyer Kōnen Tsuchiya filed a class action suit against the Japanese government demanding reparations for the actions of Unit 731, using evidence filed by Rikkyo University professor Makoto Ueda. All court levels found that the suit was baseless. No findings of fact were made about the existence of human experimentation, but the decision of the court was that reparations are determined by international treaties and not by local court cases.

Now let's see what Mao Zedong said to Japanese diplomats:

Precisely because of the Japanese Imperial Army, which had occupied a large part of China, backing Chinese into a corner, once they understood, they began taking up armed-struggle, resulting in the establishment of many counter-Japanese military bases, thus creating favourable conditions for the coming war of liberation. Japanese capitalists and warlords have done a good deed for us(communist), if ever we need to say thank you, I would like to say thank you to Japanese war lords.

Nothing was said about reparations but from this we can be fairly sure that no reparations were given, nor were they asked for.

If the Governor of Tokyo belongs to the fringe minority, how does he get re-elected? all those years.

Maybe people care about things other than his statements on China. Maybe he has good charisma. I doubt it's because he is a racist.