Ключевые слова: big, blue, brother, building, business, camera, cctv, city, closeup, control, crime, danger, detection, electronic, equipment, guard, industry, lamp, lantern, lens, modern, monitor, monitoring, observation, observe, outdoor, police, privacy, private, protect, protection, record, safe, safety, secrecy, secure, security, sky, spy, street, sunlight, supervision, surveillance, system, technology, television, urban, video, view, wall,