Alva Review-Courier -

MISSION, Kan. (AP) — Melissa Lee comforted her son and daughter after a student opened fire in their suburban Kansas City high school, wounding an administrator and a police officer stationed there.

Then weeks later, she wept for the parents in Uvalde, Texas, who were forced to bury their children after the massacre there in May. She said she was "absolutely" reassured when she learned her district had since purchased one of the panic-alert systems gaining traction nationwide amid a surge in school violence. The technology, featuring wearable panic buttons or mobile phone apps, enables teacher...