Censorship or Correct Thinking?

Ah, who says the Left doesn't practice censorship? Take this story, via Michelle Malkin, of a publishing house that alters a photograph for political reasons (PC, of course) and then defends itself by arguing "It's for the children."

And yet, if the government came to them asking that something be changed for a similar reason, there would be howls of outrage! Where's the Modern Language Association or the American Library Association in all this?