Riot policemen drag away a protester in Syntagma Square in Athens during a violent protest against the visit of Germany's Chancellor Angela Merkel, October 9, 2012. Tens of thousands of angry Greek protesters filled the streets of Athens on Tuesday to greet German Chancellor Angela Merkel, who offered sympathy but no promise of further aid on her first visit since the euro crisis erupted three years ago. REUTERS/Yannis Behrakis (GREECE - Tags: CIVIL UNREST POLITICS BUSINESS)