shooter lock

Locking out school shooters

Iowa teacher invents school door lock designed to keep dangerous intruders out of classrooms.

cave tour

Into the depths!

Minnesota's Niagara Cave celebrates 80th anniversary with lantern-guided tours.

mass twins born 24 days apart CNN

Mass. twins born 24 days apart

A set of twins born 24 days apart are healthy, thanks to the efforts of doctors who performed a rare surgery to save both children.