A new breed of intelligent video surveillance is being installed in schools around the country -- tech that follows people around campus and detects unusual behaviors. Axios' Kaveh Waddell reports: This new phase in campus surveillance responds to high-profile school shootings like the one in Parkland, Florida, last February. School administrators are now reaching for security tech that keeps a constant, increasingly sophisticated eye on halls and classrooms. Background: Schools are experimenting wildly with technology in order to secure students, deploying facial recognition, license plate readers, microphones for gunshot detection and even patrol robots. The tech the district wants is benignly branded "intelligent video analytics."

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