Ключевые слова: access, army, background, barb, barbed, barbwire, barrier, blue, border, boundary, closed, crime, criminal, danger, dangerous, day, defense, escape, fence, forbidden, freedom, frontier, grid, guard, human, industrial, jail, liberty, limit, metal, military, prevent, prison, private, protection, rights, safety, security, sharp, sky, spikes, spiral, state, steel, terror, violence, wall, war, wire, zone,