Selective censorship of textbooks is not just happening in the US. A few (not too many!) years back, we were host parents for a number of Japanese High School children. They knew that the US had bombed Hiroshima and Nagasaki, but not that Japan had been an aggressor in China for some years before WW2, or even that they had attacked Pearl Harbour. About half of the dozen or so kids we had, over four-five years, did not even know that they had been at war with Australia, and were surprised at TV specials being shown around ANZAC Day which showed action in PNG etc.

Just another example of modifying history to paper over the unwelcome reminders..... And it happens everywhere too - like the old textbook bias against the aboriginal culture in Oz, and the emphasis on the white civilising influence. The biggest problem is that when the corrections do finally get done, they tend to swing alarmingly far the other way!