Galleycat says:

Adolf Hitler’s anti-Semitic manifesto Mein Kampf has been banned from Germany for 70 years, but will return to German bookstores next month.

So many factors are at play here — atrocity, history, copyright, the free exchange of ideas — that really all we can do is wait and watch what happens. Will German bookstores carry Mein Kampf? Will people buy it? What happens when the most hateful, reviled, and influential book in the history of a nation becomes readily available again? We'll find out in 2016.