Plainedge School District displays state-of-the-art security system after PA stabbing attack
The stabbing at a high school in a suburb of Pittsburgh Wednesday has reopened the conversation about school security on Long Island.
Authorities say a 16-year-old student stabbed 22 people before he was tackled by an assistant principal. At least five were critically injured during the incident.
One Long Island school district has stepped up its security with an advanced system. Plainedge...