Ключевые слова: alarm, around, background, big, blue, brother, business, camera, cctv, circuit, control, crime, danger, electrical, electronic, electronics, equipment, guard, industry, infrared, isolated, lens, look, looking, nobody, observe, outdoor, outdoors, privacy, private, property, protect, protection, record, safety, secrecy, secure, security, sky, spy, surveillance, system, technology, television, urban, video, view, watch, watching, white,