Ezra Klein lays down six facts about gun violence. As a Floridian who grew up with a father who hunted and kept a gun under his car, I know what responsible gun ownership looks like. The physical reality of guns helped: they’re loud! They’re also hot to the touch after discharge. It didn’t occur to either my sister or me to “play” with one of his pistols. Still, he’d consider the ease with which one could buy rounds of ammo on the internet an abhorrence.