But it’s finally back to Mr. Mueller, the zeppelin-sized horsefly circling the head of state. There was that Russia thing that set off the awful commotion in the FBI, which arose first in the charge that the newly-appointed National Security Advisor had a couple of conversations with the Russian ambassador during the presidential transition period. The President-elect’s furious adversaries managed to put across the story that American officials are not supposed to talk to ambassadors from foreign countries, which is about the most absurd proposition imaginable — except in a land where school kids are taught nothing about government or history.