When Facebook deletes a video of Tibetan self-immolation, or disables a anti-Putin event page, or deactivates UK student protester pages — all on flimsy pretexts — the gap between its image and its actions becomes hard to ignore. It’s one thing for authoritarian regimes to block Facebook from operating against its will, as we’ve seen in China, Iran, and North Korea. It’s something else entirely when Facebook serves as censors’ voluntary instrument, a role it seems to be playing in Russia, Turkey, Pakistan, and other nations. In other words, Facebook has become not only a victim of censorship, but an accomplice to censorship.