Schools are refocusing efforts to keep potential mass shooters in mind as they design the buildings and campuses, following the mass shooting at Marjory Stoneman Douglass High in Parkland, FL. A state commission recently reported that the high school’s design may have impacted the number of people killed. At Marjory Stoneman Douglass, teachers were unable to lock their doors from the inside and small door windows allowed the shooter to shoot inside locked classrooms. What actions can schools take to increase safety? Correspondent Jessica Gomez visits the George W. Bush School in a suburb of Dallas, TX, where architects have designed one of the safest schools in America.

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