Ключевые слова: adult, african, alertness, american, camera, caucasian, cctv, colleague, computer, computing, control, display, guard, inspection, job, male, man, monitor, night, observation, officer, operator, professional, protection, safety, screen, security, service, supervision, surveillance, teamwork, technology, telecom, telecommunication, together, uniform, video, vigilance, watch, watching, work, worker,