Some smaller booksellers offer books banned in other nations.
We already have a system in place to monitor this problem. If it's a prohibited title, the book doesn't fly. We don't sell books that instruct people on how they can cause physical harm to others, such as 'The Anarchist Cookbook' or the 'Hit Man' book. So while German extremists can't buy their books from the Internet's biggest vendors, they can find them if they dig a little deeper. Over the last year, two other controversial books have run into difficulties with online sales.