For several confusing hours, students were unclear about their safety during the recent campus shooting at the University of North Carolina-Chapel Hill.

Social media accounts of those at risk of committing self-harm or extreme violence against others would enter required monitoring by their schools.

The School Safety Clearinghouse Act would give state and local officials a way to assess and share best practices for school security and design.

Oklahoma schools are among the latest to invest in the technology, spending $3 million on a mobile platform to be used by more than 500 districts.

Osceola County School District joins other Florida public schools, plus Florida State University, in adopting a high-tech solution in the event of active shooter situations.

As districts grapple with how best to protect students and staff in an age of lockdowns, many are looking to advanced communications systems and facial recognition software.