The Atlantic, March 2019
There’s scant evidence that they’re effective. They can, however, be psychologically damaging—and they reflect a dismaying view of childhood.
At 10:21 a.m. on december 6, Lake Brantley High School, in Florida, initiated a “code red” lockdown. “This is not a drill,” a voice announced over the PA system. At the same moment, teachers received a text message warning of an active shooter on campus.