Last week, a U.S.C. journalism professor named Marc Cooper wrote on Facebook that New York Times executive editor Dean Baquet had demonstrated “absolute cowardice” by refusing to publish any Charlie Hebdo cartoons depicting Mohammad in his paper. In response, Baquet called Cooper an “asshole.” We can disagree on whether or not Cooper is an asshole. But let’s agree on this: If Dean Baquet thinks someone is an asshole, he should say so in public.