What does it suggest when Noah Smith, writing in Bloomberg, calls his critics "9/11 truthers
…enslaved by… brain worms?"

It suggests that he is very worried. He not only thinks the barbarians are at the gate. He thinks  that his cozy citadel might actually fall.

And what does it tell us when he accuses his target, Austrian economics, of having  "anti-Semitic overtones?"–and then documents this outlandish charge by linking to someone's video on U-tube?   Smith may not be just worried. He may be terrified if he has to resort to such nonsense.....