Railway workers' associations called strikes, halting national rail services and the subway in Athens, to protest working conditions and what they described as a lack of modernization of the Greek rail system. A stationmaster arrested following the rail disaster is due to appear in court Thursday as a judicial inquiry tries to establish why the two trains traveling in opposite directions were on the same track. Transport Minister Kostas Karamanlis resigned following the crash, his replacement tasked with setting up an independent inquiry looking into the causes of the accident.