Two weeks before the first day of classes, teachers and staff at Bloomington's Valley View Middle School were already back at work, participating in the kind of surreal back-to-school preparation that's become routine for schools around the country.
Along with dozens of police officers, firefighters and paramedics, school staff members and a cadre of student volunteers — some of them wearing disturbingly realistic makeup made to look like gunshot wounds — ran through a school-shooting training exercise.
Walkie-talkies buzzed with chatter as emergency responders raced into the building and school staff members helped lead the high school and college student actors to safety.
"Anyone that can walk, come over to me," yelled a paramedic, pointing the actors toward a triage area set up in the school parking lot.
After a year that included two of the deadliest school shootings in American history, the usual jitters over a new school year are amplified by a simmering anxiety over school safety. Across the country, some schools are responding with sweeping changes: armed, plainclothes school marshals in Texas, facial-recognition entry systems in one upstate New York district and tactical pepper spray canisters at the ready in some Ohio classrooms.
In Minnesota, some students returning to classes will pass through newly remodeled entrances that feature shatter-resistant windows and secure buzzer entry systems. Other buildings have more locked doors and security cameras, or new requirements that visitors hand over an ID before getting inside.
But at most schools here and elsewhere, the work to keep students safe is largely happening behind the scenes. Across the state, school leaders are wrestling with an increasingly complex list of demands: They must dig into already tight budgets to find money for costly security upgrades and additional staff, train teachers to spot and work with students struggling with mental illness, field phone calls from worried parents, and figure out how to make their schools places that are highly secure — but also welcoming environments for students and their communities.
It is an overwhelming task that requires time and careful consideration. But after each new tragedy, and with each new school year, the pressure on school leaders intensifies.