A Pennsylvania school district has armed its students with rocks to defend themselves in the event of a school shooting. David Helsel, the superintendent of Blue Mountain School District in Schuylkill County, said at a state House Education Committee hearing on school safety this week that his district's classrooms are equipped with 5-gallon buckets of river rocks. "If an armed intruder attempts to gain entrance to any of our classrooms, they will face a classroom full of students armed with rocks," he said. "And they will be stoned." Helsel emphasized to Buzzfeed News that the so-called "go buckets" are a...