FILE - In this June 10, 2012, file photo, supporters of the extreme right-wing Golden Dawn party, attend a pre-election rally at the northern port city of Thessaloniki Greece. Bankers, governments and investors are starting to prepare for Greece to drop the euro currency, a move that could spread turmoil throughout the global financial system. A Greek election on Sunday, June 12, 2012, will go a long way toward determining whether it happens. (AP Photo/Nicolas Giakoumidis, File)

FILE - In this March 17 2012, file photo, immigrants holding placards that read "Nazis Out - Workers United Never Defied" march during a protest against racist attacks in Athens. Bankers, governments and investors are starting to prepare for Greece to drop the euro currency, a move that could spread turmoil throughout the global financial system. A Greek election on Sunday, June 12, 2012, will go a long way toward determining whether it happens. (AP Photo/Kostas Tsironis, File)

FILE- In this June 5, 2012, file photo, the marble statue of ancient Greek philosopher Plato, stands in front of the Athens Academy, as the Greek flag flies in Athens. Bankers, governments and investors are starting to prepare for Greece to drop the euro currency, a move that could spread turmoil throughout the global financial system. A Greek election on Sunday, June 12, 2012, will go a long way toward determining whether it happens. (AP Photo/Dimitri Messinis, File)

FILE - In this May 15, 2012, file photo, people walk outside the Greek parliament on Tuesday, May 15, 2012. Bankers, governments and investors are starting to prepare for Greece to drop the euro currency, a move that could spread turmoil throughout the global financial system. A Greek election on Sunday, June 12, 2012, will go a long way toward determining whether it happens. (AP Photo/Petros Giannakouris, File)

FILE- In this June 14, 2012 file photo, a tourist takes photos of the Parliament in Syntagma square in central Athens. Bankers, governments and investors are starting to prepare for Greece to drop the euro currency, a move that could spread turmoil throughout the global financial system. A Greek election on Sunday, June 16, 2012 will go a long way toward determining whether it happens. (AP Photo/Petros Karadjias, File)