In the wake of last month's deadly school shooting in Connecticut, schools across the country have tightened security. In some cases, they've hired armed security guards to patrol the hallways. Commentator John Richard Schrock says it would be a mistake to over-react and create a bunker mentality at schools, which remain among the safest places anywhere.
Commentator John Richard Schrock is a professor of biology education at Emporia State University, where he trains future biology teachers. He's also a regular contributor to KPR's Morning Edition.