The usual suspects on the CNN and MSNBC claim no president has ever called on the National Guard or the Army to put down riots and revolts. “Unprecedented,” said Larry O’Donnell on MNSBC. “Dictatorship,” declared CNN’s Don Lemon. Once upon a time, people in journalism had good historical educations. Reporters of the past didn’t necessarily study history in college. Most learned history by researching current stories. This is how most people learn most of what they know. It’s similar to the scientific method: observe, form a hypothesis,