Shelby County, Tenn., schools get security upgrades

The magnetized doors at Riverdale Elementary School in Shelby County, Tenn., are part of a security system that enables office staff to control locks from inside, while viewing visitors from a video intercom system. After surveying the visitor, staff can press a button to release the latch or call police. Shelby County Schools plans to have the same security system in every elementary school by next school year.

Click here to read The Memphis Tennesseean article.