How rational societies respond to mass shootings.

[Recursion]

7. This gets definitional; Mother Jones found 72 mass shootings in the US since 1982

They mean things like this: largely random shootings of large groups of people, generally strangers to the shooter.

When people say "134 mass shootings this year" they include for example a brawl in the parking lot of a roadhouse where two bikers pull guns and shoot each other and one other person. Not that that's not bad, but it's not what people think when they say "mass shooting".