"But those responses take a toll, and the threats are coming at a faster pace in recent years, according to Amy Klinger, a researcher with the nonprofit Educator's School Safety Network. Although there is no formal tracking mechanism for all threats of violence involving schools, the number of school bomb threats across the country in the 2015-16 academic school year totaled at least 1,267, based on media reports. That's about twice as many as were tallied three years earlier, she said. And that doesn't count the number of other types of violent threats, such as threatened shootings.But those responses take a toll, and the threats are coming at a faster pace in recent years, according to Amy Klinger, a researcher with the nonprofit Educator's School Safety Network. Although there is no formal tracking mechanism for all threats of violence involving schools, the number of school bomb threats across the country in the 2015-16 academic school year totaled at least 1,267, based on media reports. That's about twice as many as were tallied three years earlier, she said. And that doesn't count the number of other types of violent threats, such as threatened shootings."