There is nothing new except what has been forgotten. Marie Antoinette
I’m the first to stress the importance of education, and in particular the teaching of history. After tragic events, a country needs to tell its history in order to give a sense of justice to the victims, especially if legal justice isn’t possible (perhaps because of some kind of amnesty measures). Covering up the past may be useful for national reconciliation, since in most countries the perpetrators of the tragic events continue be to be around, and often represent large portions of the population.
But such a “pact of silence” aggravates the sense of injustice. The only thing worse than pain is pain that is suffered in silence and isolation, and that isn’t acknowledged.
On the other hand, one shouldn’t expect too much from history. Even a general, detailed, accurate and public knowledge of history will not prevent a repeat of historic tragedies. Present-day neo-Nazis know all too well what their idols did, and they want to repeat it.