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(CNN)–Educators across the country are scrutinizing security plans to see what more they can do to protect students after the killing of 21 people — including 19 children — in one of the deadliest school shootings in American history.
It’s an exercise that experts say may do little to prevent another school mass shooting.
The Uvalde, Texas, school district had a safety plan that included its own police force, social media monitoring, and a threat-reporting system to “provide a safe and secure environment” for students.
What worked and didn’t is part of the investigation into the May 24 shooting at a local elementary school where a teenage gunman gained access to the school and came out of a classroom closet firing an AR15-style rifle.
So-called safe corners of schools, secured spaces with two of more sets of doors, and bullet-resistant material built into the entryways are among precautions schools nationwide either had in place or are starting.
In the days following the shooting, schools in Texas reported threats or weapons on campus, and districts across the country are reviewing, updating and reinforcing their threat response policies. Read more.
