Fearing mass shootings, some schools turn to armored equipment

BERLIN, United States - Linda Bragg wrote a "quote of the day" on the small whiteboard in her classroom, a teaching aid that can double as a bullet-resistant shield in the event of a school shooting.

The tablets, made of polyethylene fiber and weighing just 1.5 kilograms, have been in the classrooms of Worcester Preparatory School in historic Berlin, Maryland since 2013.

Berlin, which features a population of 5,000 and is located just miles from some popular Atlantic beaches, calls itself "America's coolest small town."