A Washington-based company says it has the answer to every parent's worst nightmare in the aftermath of the elementary school massacre in Newtown, Connecticut. 

It's a metal detector, an X-ray machine, a bullet-proof barricade and an armed guard all at once called the 'Linear Revolving Door' by Barbecan Security Systems, LLC.

The newly-patented technology is designed to stop armed intruders in their tracks and literally eject them from a building without a single person falling into harm's way.

Read More Here: DailyMail

A video demonstration of how the doors would work: