Ключевые слова: alert, army, attack, background, bomb, caution, cloud, concept, criminal, crisis, danger, dangerous, detect, detection, discover, endangered, fear, global, grey, grunge, guide, high, imminent, impact, level, media, military, plot, psychological, range, red, religious, search, security, signal, system, target, technology, terror, terrorism, terrorist, text, threat, violence, war, warning, weapon, word, world,