Glenn Greenwald in The Intercept:
Central to free speech activism has always been the distinction between defending the right to disseminate Idea X and agreeing with Idea X, one which only the most simple-minded among us are incapable of comprehending. One defends the right to express repellent ideas while being able to condemn the idea itself. There is no remote contradiction in that: the ACLU vigorously defends the right of neo-Nazis to march through a community filled with Holocaust survivors in Skokie, Illinois, but does not join the march; they instead vocally condemn the targeted ideas as grotesque while defending the right to express them.
But this week’s defense of free speech rights was so spirited that it gave rise to a brand new principle: to defend free speech, one not only defends the right to disseminate the speech, but embraces the content of the speech itself. Numerous writers thus demanded: to show “solidarity” with the murdered cartoonists, one should not merely condemn the attacks and defend the right of the cartoonists to publish, but should publish and even celebrate those cartoons. “The best response to Charlie Hebdo attack,”announced Slate’s editor Jacob Weisberg, “is to escalate blasphemous satire.”