![PBS NewsHour - Segments show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/082/426/small/pbs-newshour-segments.png)
Summary: President Trump, a number of other Republicans and the NRA have ramped up calls for arming teachers. But it's an idea that generating a lot of criticism among educators. Jason Villalba, a Texas state representative and the architect of the school marshal program that allows Texas school districts to train and arm teachers, joins John Yang to discuss how it works.