The past is a nightmare, we can’t erase it. It’s important to preserve historical documents, to make them available, and to let them teach us the terrible lessons of history. But, as a bookseller, what do you do when the contents of these documents are truly vile? Is it ethical to make a profit by selling a photograph of the victims of Nazi concentration camps? Or to keep a book on bomb making in circulation? And should you eschew the controversial novels of today when they tend to become the classics of tomorrow? Join us for an exploration of these thorny issues on this week’s #brattlecast.