Metal detectors? More resource officers? Armed teachers? Bulletproof backpacks?
These security steps, whether effective or not, don't address the fundamental way that a school works or how people move through it. They also must be balanced with the need to create an environment where kids feel inspired and energized to learn.
As students at Marjory Stoneman Douglas High School and across the country return to classes this week, CNN spoke to designers, architects and security experts to answer a sobering question: How do you design a school in the age of the mass shooting?
Their answers, which follow a theory known as Crime Prevention Through Environmental Design, illuminate the delicate balance between security and education.
"It should be inspiring space. It should be lit with daylight. It should be a place where everyone feels welcome," said Sue Pruchnicki, principal at Bond Architects, a St. Louis firm that has designed many new schools.