Forensic officers inspect the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

A forensic officer inspects the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

Forensic officers inspect the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

Forensics officers inspect the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

Forensics officers inspect the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas TPX IMAGES OF THE DAY 

Police secure the area around the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

Police secure the area around the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

The car of former Greek prime minister and former central bank chief Lucas Papademos is secured by police following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

A police officer secures the area around the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

A police officer secures the area around the car of former Greek prime minister and former central bank chief Lucas Papademos following the detonation of an envelope injuring him and his driver, in Athens, Greece, May 25, 2017. REUTERS/Costas Baltas 

Leaders pose for a family photo at the NATO summit in Chicago May 20, 2012. From (L to R) Hungarian Prime Minister Viktor Orban, Iceland Prime Minister Johanna Sigurdardottir, Italian Prime Minister Mario Monti, Latvian President Andris Berzins, Lithuanian President Dalia Grybauskaite, Greek Prime Minister Lucas Papademos and the Netherlands' Prime Minister Mark Rutte. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS MILITARY) 

Greece's newly appointed caretaker Prime Minister Panagiotis Pikrammenos (R) shakes hands with outgoing Prime Minister Lucas Papademos during their meeting in Athens May 16, 2012. Greece put Pikrammenos, a senior judge, in charge of an emergency government on Wednesday to lead it to new elections on June 17 and bankers sought to calm public fears after the president said political chaos risked causing panic and a run on deposits. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS ELECTIONS) 

Greece's newly appointed caretaker Prime Minister Panagiotis Pikrammenos (R) shakes hands with outgoing Prime Minister Lucas Papademos during their meeting in Athens May 16, 2012. Greece put Pikrammenos, a senior judge, in charge of an emergency government on Wednesday to lead it to new elections on June 17 and bankers sought to calm public fears after the president said political chaos risked causing panic and a run on deposits. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS ELECTIONS) 

Greece's outgoing Prime Minister Lucas Papademos (L) is welcomed by President Karolos Papoulias at the presidential palace in Athens May 7, 2012. Greece plunged into turmoil on Monday after shock election results rejected a painful international bailout and left a big question mark over how the country could find a new government and stay in the euro. REUTERS/John Kolesidis (GREECE - Tags: POLITICS ELECTIONS) 

Greece's outgoing Prime Minister Lucas Papademos (L) talks with President Karolos Papoulias at the Presidential palace in Athens May 7, 2012. Greece plunged into turmoil on Monday after shock election results rejected a painful international bailout and left a big question mark over how the country could find a new government and stay in the euro. REUTERS/John Kolesidis (GREECE - Tags: POLITICS ELECTIONS) 

Greece's outgoing Prime Minister Lucas Papademos (L) enters President Karolos Papoulias' office at the Presidential palace in Athens May 7, 2012. Greece plunged into turmoil on Monday after shock election results rejected a painful international bailout and left a big question mark over how the country could find a new government and stay in the euro. REUTERS/John Kolesidis (GREECE - Tags: POLITICS ELECTIONS) 

Greece's Prime Minister Lucas Papademos (2nd R) arrives for a cabinet meeting at the parliament in Athens May 2, 2012. Greece will call a snap election for May 6. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos (C) arrives for a cabinet meeting at the parliament in Athens May 2, 2012. Greece will call a snap election for May 6. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos (C) arrives for a cabinet meeting at the parliament in Athens, April 27, 2012. Greece will call a snap election for May 6. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Katerina Karousi, a 76-year old cancer patient and former Socialist voter, breaks down in sobs inside her burned-out home April 20, 2012. Earlier Golden Dawn extreme right party members brought food for her and her 79-year old husband Andreas Karoussis. The couple lives in an apartment badly damaged in a fire last year, unable to afford repairs on Karoussis' 729-euro per month pension. In 2009, Golden Dawn took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 20, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: ELECTIONS POLITICS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Katerina Karousi, a 76-year old cancer patient and former Socialist voter, looks at Christian icons as she stands next to her husband inside their home in Athens April 20, 2012. Earlier, Golden Dawn extreme right party members brought bags of food for her and her 79-year old husband, Andreas Karoussis. The couple live in an apartment badly damaged in a fire last year, unable to afford repairs on Karoussis' 729-euro per month pension. In 2009, Golden Dawn took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 20, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Katerina Karousi, a 76-year old cancer patient and former Socialist voter, is reflected in a mirror next to her husband inside their home in Athens April 20, 2012. Earlier, Golden Dawn extreme right party members brought bags of food for her and her 79-year old husband, Andreas Karoussis. The couple live in an apartment badly damaged in a fire last year, unable to afford repairs on Karoussis' 729-euro per month pension. In 2009, Golden Dawn took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 20, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Katerina Karousi, a 76-year-old cancer patient and former Socialist voter, breaks down in tears outside her home as Golden Dawn extreme right party members unload bags of food for her and her 79-year-old husband, Andreas Karoussis, in Athens April 20, 2012. The couple live in an apartment badly damaged in a fire last year, and are unable to afford repairs on Karoussis' 729-euro per month pension. In 2009, Golden Dawn took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 20, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A member of the Golden Dawn extreme right party rings a door bell during a food and clothes distribution to poor families in Athens April 20, 2012. In 2009, Golden Dawn took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 20, 2012.REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Katerina Karousi, a 76-year old cancer patient and former Socialist voter, is reflected in a mirror inside her home in Athens April 20, 2012. Earlier, Golden Dawn extreme right party members brought bags of food for her and her 79-year old husband Andreas Karoussis. The couple live in an apartment badly damaged in a fire last year, unable to afford repairs on Karoussis' 729-euro per month pension. In 2009, Golden Dawn took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 20, 2012.REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Members of the extreme right Golden Dawn party hold flags bearing their party's logo during an election campaign rally in Athens April 21, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 21, 2012.REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Elias Panagiotaros, a spokesperson for the extreme right Golden Dawn party (2nd R), and other members of the group shout insults against a Socialist former education minister during an election campaign gathering in Athens April 21, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 21, 2012. REUTERS/Yannis Behrakis (GREECE) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A member of the extreme right Golden Dawn party holds a Greek flag during an election campaign rally in Athens April 21, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 21, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Members of the Greek extreme right Golden Dawn party stand outside the town hall of Perama town, near Athens, during an election campaign rally April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Members of the Greek extreme right Golden Dawn party hold red flares outside the town hall of Perama town, near Athens, during an election campaign rally April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A member of the Greek extreme right Golden Dawn party sports a tattoo that reads "Hellas", the Greek word for Greece, in the town hall of Perama town near Athens during an election campaign rally April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek extreme right Golden Dawn party leader Nikolaos Mihaloliakos attends a campaign rally in the town hall of Perama town near Athens April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek extreme right Golden Dawn party leader Nikolaos Mihaloliakos, a former Greek special forces officer, addresses party members during a campaign rally in the town hall of Perama town near Athens April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A member of the Greek extreme right Golden Dawn party (R) listens at his leader Nikolaos Mihaloliakos, a former Greek special forces officer, during a campaign rally in the town hall of Perama town near Athens April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS ELECTIONS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Members of the Greek extreme right Golden Dawn party hold red flares outside the town hall of Perama town near Athens during an election campaign rally April 23, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 23, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: POLITICS) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A member of the extreme right Golden Dawn party holds a flag bearing their party's logo during an election campaign rally in Athens April 21, 2012. In 2009, the group took just 0.23 percent of the vote, this time; polls show it taking between 4.1 and 5.7 percent. Much of that has come at the expense of the far-right LAOS party, whose ratings plummeted after it joined technocrat Prime Minister Lucas Papademos' pro-bailout coalition last year. The rise of Golden Dawn - which denies critics' labels as neo-Nazi - is all the more intriguing in a country proud of its World War II resistance against Nazi Germany and where anti-German sentiment still runs high over austerity measures demanded by Berlin and other lenders. Picture taken April 21, 2012. REUTERS/Yannis Behrakis (GREECE - Tags: TPX IMAGES OF THE DAY ELECTIONS POLITICS) 

European Commission's Vice-President and Commissioner on Enterprise and Industry Antonio Tajani (R) talks to Greece's Prime Minister Lucas Papademos during the conference "Growth in Greece: SMEs and Entrepreneurship in the Europe 2020 Strategy", at the Intercontinental hotel in Athens, April 20, 2012. REUTERS/John Kolesidis (GREECE - Tags: BUSINESS POLITICS) 

European Commission's Vice-President and Commissioner on Enterprise and Industry Antonio Tajani (L) sits next to Greece's Prime Minister Lucas Papademos during the conference "Growth in Greece: SMEs and Entrepreneurship in the Europe 2020 Strategy", at the Intercontinental hotel in Athens, April 20, 2012. REUTERS/John Kolesidis (GREECE - Tags: BUSINESS POLITICS) 

Greece's Prime Minister Lucas Papademos delivers his speech during the conference "Growth in Greece: SMEs and Entrepreneurship in the Europe 2020 Strategy" at the Intercontinental hotel in Athens, April 20, 2012. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos delivers his speech during the conference "Growth in Greece: SMEs and Entrepreneurship in the Europe 2020 Strategy" at the Intercontinental hotel in Athens, April 20, 2012. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos attends a cabinet meeting at the parliament in Athens April 11, 2012. Greece will call a snap election for May 6 on Wednesday, government officials said, opening a campaign that may produce no clear result and threaten implementation of the international bailout plan that saved Athens from bankruptcy. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS HEADSHOT) 

Greek Prime Minister Lucas Papademos (L) meets Greek President Karolos Papoulias in Athens April 11, 2012. Greece will call a snap election for next month on Wednesday, opening a campaign that may produce no clear result and threaten implementation of the international bailout plan that saved the nation from bankruptcy. REUTERS/Louisa Gouliamaki/Pool (GREECE - Tags: POLITICS) 

Greek Prime Minister Lucas Papademos (L) meets Greek President Karolos Papoulias in Athens April 11, 2012. Greece will call a snap election for next month on Wednesday, opening a campaign that may produce no clear result and threaten implementation of the international bailout plan that saved the nation from bankruptcy. REUTERS/Louisa Gouliamaki/Pool (GREECE - Tags: POLITICS) 

Greek Prime Minister Lucas Papademos enters the office of Greek President Karolos Papoulias before a meeting in Athens April 11, 2012. Greece will call a snap election for next month on Wednesday, opening a campaign that may produce no clear result and threaten implementation of the international bailout plan that saved the nation from bankruptcy. REUTERS/Louisa Gouliamaki/Pool (GREECE - Tags: POLITICS) 

Greece's Prime Minister Lucas Papademos arrives for a cabinet meeting at the parliament in Athens, April 11, 2012. Greece will call a snap election for May 6 on Wednesday, government officials said, opening a campaign that may produce no clear result and threaten implementation of the international bailout plan that saved Athens from bankruptcy. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos (C) arrives for a cabinet meeting at the parliament in Athens April 11, 2012. Greece will call a snap election for May 6 on Wednesday, government officials said, opening a campaign that may produce no clear result and threaten implementation of the international bailout plan that saved Athens from bankruptcy. REUTERS/John Kolesidis (GREECE - Tags: POLITICS ELECTIONS) 

Head of Greece's Democratic Left party Fotis Kouvelis walks towards to the office of Greece's Prime Minister Lucas Papademos before their meeting in Athens March 28, 2012. Greece is likely to hold snap polls on May 6 to elect a government that must steer the country through tough austerity, officials of the two main political parties said on Tuesday.
REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos (L) and the Head of Greece's Democratic Left party Fotis Kouvelis shake hands during their meeting in Athens March 28, 2012. Greece is likely to hold snap polls on May 6 to elect a government that must steer the country through tough austerity, officials of the two main political parties said on Tuesday.
REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Head of Greece's Democratic Left party Fotis Kouvelis walks towards to the office of Greece's Prime Minister Lucas Papademos before their meeting in Athens March 28, 2012. Greece is likely to hold snap polls on May 6 to elect a government that must steer the country through tough austerity, officials of the two main political parties said on Tuesday. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Daniel Cohn-Bendit (2nd R) and Rebecca Harms (L), co-presidents of the Group of the Greens/European Free Alliance, enter the office of Greece's Prime Minister Lucas Papademos for a meeting in Athens March 27, 2012. REUTERS/John Kolesidis (GREECE - Tags: POLITICS) 

Daniel Cohn-Bendit (R) and Rebecca Harms, co-presidents of the Group of the Greens/European Free Alliance, attend a meeting with Greece's Prime Minister Lucas Papademos in Athens March 27, 2012. REUTERS/John Kolesidis(GREECE - Tags: POLITICS) 

Greece's Prime Minister Lucas Papademos (L) meets Daniel Cohn-Bendit (R) and Rebecca Harms, co-presidents of the Group of the Greens/European Free Alliance in Athens March 27, 2012. REUTERS/John Kolesidis (GREECE - Tags: POLITICS) 

Greece's Prime Minister Lucas Papademos (C) and state officials applaud soldiers during a military parade marking Greece's Independence Day in Athens March 25, 2012. REUTERS/Yorgos Karahalis (GREECE - Tags: MILITARY POLITICS ANNIVERSARY) 

Greece's Prime Minister Lucas Papademos (L) and state officials applaud soldiers during a military parade marking Greece's Independence Day in Athens March 25, 2012. REUTERS/Yorgos Karahalis (GREECE - Tags: MILITARY POLITICS ANNIVERSARY) 

Greece's Prime minister Lucas Papademos attends a swearing-in ceremony for newly appointed Finance Minister Filippos Sachinidis in Athens March 21, 2012. Deputy Finance Minister Sachinidis replaced Evangelos Venizelos in Greece's top finance job on Wednesday after Venizelos resigned to lead the Socialist Party at general elections. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime minister Lucas Papademos (L) shakes hands with newly appointed Finance Minister Filippos Sachinidis after a swearing in ceremony at the Presidential Palace in Athens March 21, 2012. Deputy Finance Minister Sachinidis replaced Evangelos Venizelos in Greece's top finance job on Wednesday after Venizelos resigned to lead the Socialist Party at general elections. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS) 

Greece's Finance Minister Evangelos Venizelos (R) talks to Prime Minister Lucas Papademos during their meeting in Athens March 19, 2012. Venizelos said on Monday he was stepping down as finance minister to lead the Socialists into a general election, a day after taking over the helm of the party, which is trailing far behind its rival conservatives in opinion polls. REUTERS/Thanassis Stavrakis/Pool (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos (L) gestures during a meeting with Finance Minister Evangelos Venizelos in Athens March 19, 2012. Venizelos said on Monday he was stepping down as finance minister to lead the Socialists into a general election, a day after taking over the helm of the party, which is trailing far behind its rival conservatives in opinion polls. REUTERS/Thanassis Stavrakis/Pool (GREECE - Tags: POLITICS BUSINESS) 

Greece's Prime Minister Lucas Papademos (L) talks with Finance Minister Evangelos Venizelos before a cabinet meeting at the parliament in Athens March 9, 2012. Greece averted the immediate threat of an uncontrolled default on Friday, winning strong acceptance from its private creditors for a bond swap deal which will eat into its mountainous public debt and clear the way for a new bailout. REUTERS/Yiorgos Karahalis (GREECE - Tags: BUSINESS POLITICS) 

Greece's Prime Minister Lucas Papademos (L) talks with Finance Minister Evangelos Venizelos before a cabinet meeting at the parliament in Athens March 9, 2012. Greece averted the immediate threat of an uncontrolled default on Friday, winning strong acceptance from its private creditors for a bond swap deal which will eat into its mountainous public debt and clear the way for a new bailout. REUTERS/Yiorgos Karahalis (GREECE - Tags: BUSINESS POLITICS)