“Nearly 30 years later, in response to the Paris massacre, the Associated Press removed an image of Piss Christ from its editorial archives. We’ve seen the same impulse for self-censorship in the West before, as we see it in the refusal of many media outlets to publish the Charlie Hebdo cartoons at the heart of this recent tragedy. Given the seriousness of the violence, such self-censorship is understandable; it’s also a step backward at a time when we need to reassert the importance of free expression by artists, activists, journalists and editors alike.”