Some think the arrogance of the mainstream press is a recent thing. Not so. Check out this from a 1920 editorial ridiculing one of the pioneers of rocketry:

That Professor Goddard, with his ‘chair’ in Clark College and the countenancing of the Smithsonian Institution, does not know the relation of action to reaction, and of the need to have something better than a vacuum against which to react – to say that would be absurd. Of course he only seems to lack the knowledge ladled out daily in high schools.

As blogger David Foster points out:

What is noteworthy about the original editorial is not just the ignorance, but the arrogance and the outright nastiness.

You could say that about most of the editorial I read in the paper I that lands on my sidewalk each day.