Subterranean terror: Can tech defeat hidden underground threats?
Nuclear weapon installations, cross-border smuggling tunnels, subway systems, cave networks ... just a few places that adversaries can pose an underground threat to security.
via FOX NEWS https://ift.tt/2E5J9bo Nuclear weapon installations, cross-border smuggling tunnels, subway systems, cave networks ... just a few places that adversaries can pose an underground threat to security.