How Parkland Changed School Safety

As the young survivors of the Florida school shooting keep up their marches and walkouts for gun control, the NRA is pushing back with its own goto narrative: The only thing that stops a bad guy with a gun is a good guy with a gun. In the aftermath of the Parkland shooting, lots of schools seemed to agree with that approach and moved to put more good guys in the classroom. This week, Gianna Toboni sees firsthand how some teachers are taking up arms and explores the deep divisions in America that make