We know that it took about six minutes for police to mount an effective armed response to the Orlando Islamic murderer. The off duty officer/armed door security had been factored in by the jihadi, and had been driven off or otherwise neutralized outside the bar at the beginning of the incident.
Indeed, the best testimony to the power of an armed populace is the vigor with which the Warsaw Pact dictatorships enforced gun control. When the Communists took over Bulgaria on September 9, 1944, they immediately confiscated every weapon in private possession.
Rachel Larimore, a Senior Editor at Slate, has written an unusual piece for the publication. It is titled Bullet Points.