There are four steps schools can take to prevent tragedies like the one in Uvalde, Texas, Steven Bucci, a Heritage Foundation visiting fellow, says.

“It doesn’t have to be like this,” Bucci says. “We can mitigate the risk of these kind of things happening. I won’t say that any system is perfect and is going to stop every tragic incident, but boy, we could do a better job at it than we’re doing.”

Americans across the nation are...