A protester armed with a hammer (L) awaits for riot police officers behind a corner in Athens’ central Syntagma (Constitution) Square June 15, 2011 during clashes. Angry youths hurled petrol bombs at Greece’s Finance Ministry and tens of thousands of protesters marched on parliament on Wednesday to oppose government efforts to pass new austerity laws for the debt-choked euro zone state. REUTERS/Yannis Behrakis (GREECE – Tags: POLITICS BUSINESS CIVIL UNREST EMPLOYMENT)