https://www.gannett-cdn.com/-mm-/20f47688b644db259b877a6eee76fb40b6c6c1e9/c=0-0-638-480&amp;r=x408&amp;c=540x405/local/-/media/2018/02/24/USATODAY/USATODAY/636550550605430107-teachers-armed-2.JPG