Ключевые слова: announcement message, arrest, baton, city life, city street, closeup, communication, conflict, danger, day, democracy, demonstration, empty, equipment, force, government, guard, helmet, in a row, march, megaphone, men, metal, modern, outdoors, policeman, politics, power, protection, protest, protesters, public speaker, rally, revolution, riot, safety, shield, speaker, speech, squad, street, strike, swat, talking, technology, unrest, violence, war,