And yet as an EMS responder, I've seen and heard personally of the challenges that come with it.
There are cases where shooters have been brought down by "a good guy with a gun".
There are others where there have been plenty of armed security around, even police, and it's done nothing to stop things.
And there's been cases where now you have a bunch of inconsistently trained people running around an active shooter scene, confused and terrified, possibly injuring bystanders or each other. "Hey, are you the shooter?" Shooter: "no, i'm just like you, hunting him too!" (if indeed the reaction is not "see gun, shoot").
There are cases where shooters have been brought down by "a good guy with a gun".
There are others where there have been plenty of armed security around, even police, and it's done nothing to stop things.
And there's been cases where now you have a bunch of inconsistently trained people running around an active shooter scene, confused and terrified, possibly injuring bystanders or each other. "Hey, are you the shooter?" Shooter: "no, i'm just like you, hunting him too!" (if indeed the reaction is not "see gun, shoot").