(When I arrived home, some days later, I decided to order another book—a vicious book that had influenced anti-Semites for eighty years. It was Henry Ford’s The International Jew. I gave Amazon my credit card details. A few weeks later, I logged on to Amazon again, and I was surprised to find a welcoming message. “Hello, Jon Ronson,” it said “If you enjoyed The International Jew, perhaps you might like to try some other recommendations—Mein Kampf by Adolf Hitler . . .
