Ключевые слова: airport, alarm, business, camera, cctv, city, control, detection, digital, electronic, equipment, fire, guard, industry, lasvegas, location, monitor, monitoring, observe, police, prevention, privacy, private, property, protect, protection, record, safe, safety, secure, security, shooting, spy, store, street, surveillance, survey, system, technology, television, terrorism, terrorist, terrorist threat, threat, trade center, tv, urban, video, view, watching,