Explosives Detection The U.S.A. has had several major planned terrorist explosions over the last few decades and one can only expect more attempts in the future. The BorderTransportationSystem will be checking for the transport of explosives at all border crossing stations and rail stations. Along the length of the system there will be various sensors that will be able to detect flyovers, underground digging, human approachments, and other attempts to get near the system or cross it, thus these too will discourage many terrorist attempts.  Index of ... DetectaChem portable detection Explosive detection Guide for the Selection of Commercial Explosives Detection