My school spent a couple of weeks on it towards the end of the year. Honestly, we went into the brutality of it and didnt hide some of the horrific details, but I'm sure there was a lot that didnt get covered. My biased text book seemed to give the vibe that the events were brutal but necessary... I kinda doubt that but we didnt go into a lot of our own failures. They werent completely ignored but they were definitely diminished.