Workable cannons are on the lawn of the Capitol today. Shortly after noon, they’ll fire 19 shots toward the bluffs across the Missouri River. It’s all ceremonial, of course. Retired National Guard Lieutenant Colonel Mike Gunther says they reserve more than 19 shots for national figures and heads-of-state. Governors and other elected officials get up to 19 shots. The Air National Guard will provide the F-15s for the ceremonial flyover salute.