@CNN: Fire drills became popular decades ago. Today, teachers and children are preparing for something entirely different… https://t.co/BmOkG130dg
Fire drills became popular decades ago. Today, teachers and children are preparing for something entirely different: mass shootings https://t.co/rY83FFhVUz http://pic.twitter.com/PnIjBM115q
— CNN (@CNN) November 15, 2017