Most U.S. teenagers are now worried a shooting could happen at their school, according to a survey released today by the Pew Research Center.

Why it matters: Kids go through enough at school without fearing for their safety.

By the numbers, per Pew:

• "86% of teens [ages 13 to 17] say that preventing people with mental illnesses from purchasing guns and that improving mental health screening and treatment would be effective."
• "Roughly eight-in-ten teens (79%) say that having metal detectors in schools would be effective..."
• "66% say the same about banning assault-style weapons."
• 39% "say that allowing teachers to carry guns in schools would be very or somewhat effective at preventing school shootings; 35% of teens say this would be not at all effective."

The bottom line: Parkland has left a terrible legacy of anxiety among teenagers and their parents — but the survey also shows how much our backgrounds and life experiences can affect how we view school violence, Axios' David Nather writes.

Go deeper: Full Pew data

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