ATHENS : Riot police hold their positions next to fire from firebombs thrown by protesters, engulfing vehicles and barricades set up by protesters, during clashes in Athens, late Wednesday, Dec. 6, 2017. Rioting youths hurled petrol bombs at police, set up street barricades, and damaged storefronts in Greece’s two largest cities Wednesday, as violence broke out at marches held to mark the ninth anniversary of the fatal police shooting of a teenager in Athens. (AP/PTI)