PARIS, FRANCE - DECEMBER 01: Cars are put on fire nearby the Arc de Triomphe, on December 1, 2018 in Paris, France. The demonstrators, known as "gilets jaunes" or "yellow vests," have protested across France for the last two weeks, demanding a reduction in fuel prices. French law requires drivers to carry yellow vests in case of accident. (Photo by Veronique de Viguerie/Getty Images)