“There is no evidence supporting arguments from pro-gun rights lawmakers that training and equipping teachers with guns will make students safer. A 2019 study by researchers at the University of Toledo and Ball State University reviewed 18 years of US school security measures — including placing more armed teachers in school — and found no evidence of reduced gun violence.
Denise Gottfredson, a criminologist at the University of Maryland, called the policy of arming school personnel “ill-advised.” Beyond substantial research linking gun accessibility and increased gun violence, firearms brought into school by educators “might be fired accidentally, the teachers who carry them might deliberately use them for unintended purposes, and, even more likely, the guns might end up in the hands of students,” Gottfredson told Reuters.”
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“The US is not the only country in the world where mass shootings have happened, but it is unique in how frequently these mass shootings occur within its borders.
In his widely-cited 2016 study, Adam Lankford, a professor at the University of Alabama, analyzed data on global mass shootings between 1966 and 2012 and found that 31 percent of perpetrators in mass shootings worldwide during that time were American.
Adjusting for variables, Lankford also found that a country’s rate of gun ownership correlated with the odds of it having mass shootings. When it comes to gun ownership, the US is practically in a league of its own: the US population only makes up less than 5 percent of the global population yet Americans account for about 45 percent of the world’s gun ownership. It is estimated that US civilians own a total of 393 million firearms — meaning there are more guns in civilian hands than people.”
https://www.vox.com/2022/5/29/23145515/pro-gun-lawmakers-arm-teachers-violence