Ключевые слова: alertness, big, brother, business, camcorder, camera, cctv, circuit, concepts, control, electrical, electronics, equipment, eye, feature, guard, home, house, instrument, lens, looking, objects, optical, outdoors, ownership, photographic, pole, power, privacy, private, protection, rendering, safety, security, set, shadowing, spy, surveillance, system, technique, technology, videcam, video, view, watching,