Bomb Squad: How Cops Safely Move Explosives

New York police used an incredibly strong chamber to safely move an undetonated explosive Saturday night (Sept. 16), shortly after one explosion rocked New York City's Chelsea neighborhood, news sources reported. But what exactly is this device, known as a total containment vessel (TCV), and how does it protect people from explosives? In essence, a TCV is a chamber that fully contains the pressures and fragments released by an explosive, according to experts.