I am married to a Japanese girl. And there's no question that the history they are taught in school differs from the one that is taught in ours. Guess what: neither version are the complete truth.
There are no squeaky-clean countries to be found in this world.. Nearly all groups of humans, throughout history, have come up with some rationale (Gott mit uns, Manifest Destiny, etc.,) for mistreating some other group of humans. They're all just excuses. And everyone likes to emphasize the horror of the other guys' atrocities while denying or defending their own.
It also, sadly, seems to be the case that pretty much all governments lie to their own people some or most of the time.
By the way, my brother-in-law works for one of Japan's regional electric power companies (not TEPCO) and he is busy as hell right now. Every time there's an earthquake of any size in Japan, he gets a stack of paperwork as tall as his computer monitor; the current situation has basically ensured he won't even be able to leave his office for the foreseeable future.
As a side note, much of the speculation on this board (as elsewhere) about the design, location, backup systems, disaster-preparedness and so on, of the Japanese nuclear power plants, would be characterized, charitably, as "laughable." (Seriously folks, graphite in the core? In a BWR??)