@CNN: These students have developed technology to protect their high schools during a shooting https://t.co/HNE22COBMO https://t.co/TWY5h6LRLA

April 1, 2019 / The Arbiter / CNN

@CNN: These students have developed technology to protect their high schools during a shooting https://t.co/HNE22COBMO https://t.co/TWY5h6LRLA

These students have developed technology to protect their high schools during a shooting https://t.co/HNE22COBMO pic.twitter.com/TWY5h6LRLA

— CNN (@CNN) April 1, 2019

x