A sign at Syntagma metro station reads "Metro will not be running on Wednesday" during a general 24-hour strike in Athens, February 24, 2010. Flights were grounded and ministries and schools were shut in Greece on Wednesday as civil servants and private sector workers went on a nationwide strike to protest EU-backed austerity measures. REUTERS/Yiorgos Karahalis (GREECE - Tags: CIVIL UNREST BUSINESS POLITICS EMPLOYMENT)