UVALDE, Texas -- In a new twist in the Uvalde elementary school mass shooting, a source has confirmed to ABC News that as police waited for more than an hour in a hallway outside the classrooms where ...

PALM BEACH COUNTY, Fla. — A new mandate in Palm Beach County public schools will require all classroom doors to be locked when school is in session. WPTV first reported in June that a handful of ...

Michigan State University will add locks to more than 1,300 classroom doors by fall, the school announced Wednesday. The announcement is part of a wider plan to improve campus safety after a man ...

The classroom doors at Robb Elementary School – which had metal frames and opened outwards – presented an extra obstacle for law enforcement as they responded to the massacre that killed 19 children ...

The Undergraduate Student Government at the University of Minnesota launched a door locking petition Tuesday, calling for every instructional space to be securely locked from inside to help protect ...

PHOENIX — It's one of the simplest lines of defense if an intruder gets into your child's school - a locked door. The easiest way to make sure it's in place is if a teacher can lock it from the inside ...

Robb Elementary School, in Uvalde, Texas, where a shooter killed 21 people in May, had problems with locks on both interior classroom doors and entrances and exits to the school building, according to ...

Conversations about “hardening” schools resurface after every mass school shooting. And so do questions about how the shooters manage to get into classrooms. There have been 27 school shootings in ...