Do Japanese politicians know about Japan’s “Actual” history during WW2?

I mean, are they given any info on the war crimes, atrocities, Unit 731, etc?

Or a very basic and vague version of WW2 history?

I am just curious, not trying to criticize Japan or anything.

Because the mainstream media keeps saying most Japanese don't know/care about WW2 history because they were never exposed to the "actual" history of WW2.

Is this true or exaggeration?