In August 2020, law enforcement officers from five agencies converged inside the hallways of a school in Uvalde, Texas, their guns drawn, role-playing how they would halt a gunman.
The training, detailed in documents reviewed by The New York Times, was part of an overhaul of security preparedness in Uvalde — and across much of Texas. Uvalde school officials were doubling their budget for security, updating protocols and adding officers to the district's Police Department. And the city's separate police force dispatched its SWAT team, in tactical gear, to learn the layout of school buildings.
But none of the extensive preparations halted the rampage of an 18-year-old gunman who entered a Uvalde elementary school this week and killed 19 children and two teachers. Family members who had rushed to the scene said they pleaded with officers, who were assembling outside the school, to enter the building.
The carnage has renewed a decades-old debate about how to end the horror of U.S. school shootings, with many Texas political leaders once again calling for heightened school security measures. But others, pointing to devastation even on campuses that have invested heavily in security, said that such a singular focus could not stop a committed killer with access to weapons — and that such efforts might actually provide a false sense of safety in the absence of gun control regulations and more robust investments in mental health.
After the shooting at Columbine High School in Colorado in 1999, Congress began providing federal dollars for campus officers, and officials made — and remade — security protocols inside schools, from lockdown training drills to elaborate identification requirements. Nationally, 19% of elementary school students, 45% of middle schoolers and 67% of high school students attend a school with a campus police officer, according to a 2018 report from the Urban Institute.
Still, there is little evidence nationally that the dollars poured into school security measures have decreased gun violence in schools, according to a 2019 study co-written by Jagdish Khubchandani, a professor of public health at New Mexico State University.
"These security measures are not effective," Khubchandani said this week. "And they are not catching up to the ease of access with which people are acquiring guns in the pandemic."
The nation's epidemic of school shootings has only grown worse, sometimes in situations where armed school officers have been present. An officer on duty at Marjory Stoneman Douglas High School in Parkland, Florida, in 2018 has been accused of hiding as a teenage gunman killed 17 people.