There have been many mass marches on Washington, D.C., so the locals know how to make plans to anticipate the congestion and the police are polite and skillful in the science of crowd control. They can afford to be polite because the crowds, no matter how large, are too.

Oh, sure, they shout a lot, but that’s what a protest march is all about. Back in April 1894 unemployed workers known as “Coxey’s Army” showed up to demand that Congress do something. It was the second year of an economic depression that would last another two years, but it was the worst that had hit the nation barely three decades since the end of the Civil War.

Americans know where to head when they are at odds with their government and most know or suspect that the source of their problems can be found in Washington, D.C. and they are always right.