Covering The Past In History Class?

You'd think that would be a forgone conclusion. But considering the article linked below is from New Zealand, maybe they don't consider it as historically significant - their history, that is:

White supremacy-themed party an honest mistake

I've heard of this sort of thing before. Several years ago, a Provo newspaper had an article regarding a homeowner who had called the police, alerting them to a Star of David that had been spray-painted on his lawn. The officer who responded didn't know what the fuss was about, as he had never seen a Star of David before.

Hope history doesn't repeat itself.