A protester chants slogans in front of blocked ticket machines with a banner that reads "Occupation" placed on them at the Syntagma Metro station in Athens on Saturday, March 3, 2012, during a protest against the Greek government's austerity measures. (AP Photo/Kostas Tsironis)

Photo by: Kostas Tsironis

A protester chants slogans in front of blocked ticket machines with a banner that reads "Occupation" placed on them at the Syntagma Metro station in Athens on Saturday, March 3, 2012, during a protest against the Greek government's austerity measures. (AP Photo/Kostas Tsironis)