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Lockdown drills have become a routine part of the school year. But should they be? School leaders hope lockdown drills will help protect their students in the event of a mass shooting. But what does it do to students' mental health? Lockdown drills have become a routine part of the school year. But should they be? October 29, 20254:41 AM ET Heard on Morning Edition Leila Fadel Lockdown drills have become a routine part of the school year. But should they be? Audio will be available later today. School leaders hope lockdown drills will help protect their students in the event of a mass shooting. But what does it do to students' mental health?