Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY) 

Members of the Musanda Holy Ghost Church in Kibera pray during New Year's celebrations in Nairobi January 1, 2015. REUTERS/Noor Khamis (KENYA - Tags: RELIGION SOCIETY) 

Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY) 

Fireworks explode during New Year's celebrations at Martyrs Square in downtown Beirut January 1, 2015. REUTERS/Jamal Saidi (LEBANON - Tags: SOCIETY) 

A big rig truck that was blown over during high winds lies next to the 210 freeway near the 15 after a storm brought snow to many southern California locales, in Rancho Cucamonga, California, December 31, 2014. Two people died on a wind-beaten California island and crews rescued more than 100 drivers trapped in snow-caked mountains farther inland as winter storms chilled the western half of the United States on New Year's Eve, officials said on Wednesday. REUTERS/David McNew (UNITED STATES - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

Snow surrounds young palm trees in the yard of a subdivision home after a storm brought snow to many southern California locales, in Yucaipa December 31, 2014. Two people died on a wind-beaten California island and crews rescued more than 100 drivers trapped in snow-caked mountains farther inland as winter storms chilled the western half of the United States on New Year's Eve, officials said on Wednesday. REUTERS/David McNew (UNITED STATES - Tags: ENVIRONMENT SOCIETY) 

People knock fresh snow off tree branches after a storm brought snow to many southern California locales, near Yucaipa December 31, 2014. Two people died on a wind-beaten California island and crews rescued more than 100 drivers trapped in snow-caked mountains farther inland as winter storms chilled the western half of the United States on New Year's Eve, officials said on Wednesday. REUTERS/David McNew (UNITED STATES - Tags: ENVIRONMENT SOCIETY) 

Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY) 

Revellers celebrate New Year's at Martyrs Square in downtown Beirut January 1, 2015. REUTERS/Jamal Saidi (LEBANON - Tags: SOCIETY) 

Traders Peter Tuchman (L) and Joseph Mastrolia work on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Revellers celebrate New Year's at Martyrs Square in downtown Beirut January 1, 2015. REUTERS/Jamal Saidi (LEBANON - Tags: SOCIETY) 

Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY) 

Traders Peter Tuchman (L) and Joseph Mastrolia work on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Trader Peter Tuchman works on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY) 

Fireworks explode next to the Quadriga sculpture atop the Brandenburg gate during New Year celebrations in Berlin January 1, 2015. REUTERS/Fabrizio Bensch (GERMANY - Tags: SOCIETY) 

Trader Joseph Mastrolia works on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

A boy slides down a hill after a storm brought snow to many southern California locales, near Yucaipa, California December 31, 2014. Two people died on a wind-beaten California island and crews rescued more than 100 drivers trapped in snow-caked mountains farther inland as winter storms chilled the western half of the United States on New Year's Eve, officials said on Wednesday. REUTERS/David McNew (UNITED STATES - Tags: ENVIRONMENT SOCIETY) 

Trader Joseph Mastrolia works on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Revellers from London dance as they wait for fireworks to start at the London Eye on the River Thames during New Year celebrations in London December 31, 2014. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SOCIETY) 

Snow clings to palm trees and evergreens after a storm brought snow to many southern California locales, in Yucaipa, California, December 31, 2014. Two people died on a wind-beaten California island and crews rescued more than 100 drivers trapped in snow-caked mountains farther inland as winter storms chilled the western half of the United States on New Year's Eve, officials said on Wednesday. REUTERS/David McNew (UNITED STATES - Tags: ENVIRONMENT SOCIETY) 

Revellers from North Carolina, U.S. cheer as they wait for fireworks to start at the London Eye on the River Thames during New Year celebrations in London December 31, 2014. REUTERS/Suzanne Plunkett (SOCIETY) 

Snow clings to palm trees at a subdivision home after a storm brought snow to many southern California locales, in Yucaipa, California, December 31, 2014. Two people died on a wind-beaten California island and crews rescued more than 100 drivers trapped in snow-caked mountains farther inland as winter storms chilled the western half of the United States on New Year's Eve, officials said on Wednesday. REUTERS/David McNew (UNITED STATES - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY) 

Lithuania's Minister of Finance Rimantas Sadzius holds a euro banknote during an event celebrating Lithuania's joining the euro zone in Vilnius January 1, 2015. REUTERS/Ints Kalnins (LITHUANIA - Tags: BUSINESS POLITICS) 

Trader Peter Tuchman works on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Lithuania's Prime Minister Algirdas Butkevicius holds a euro banknote during an event celebrating Lithuania's joining the euro zone in Vilnius January 1, 2015. REUTERS/Ints Kalnins (LITHUANIA - Tags: BUSINESS POLITICS) 

Fireworks explode over the temple of the Parthenon atop the Acropolis hill during New Year's day celebrations in Athens January 1, 2015. REUTERS/Alkis Konstantinidis (GREECE - Tags: SOCIETY) 

A performer dances to Michael Jackson music on the R train as it pulls into Times Square on New Year's Eve in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY TRANSPORT) 

Fireworks explode over the temple of the Parthenon atop the Acropolis hill during New Year's day celebrations in Athens January 1, 2015. REUTERS/Alkis Konstantinidis (GREECE - Tags: SOCIETY) 

Lithuania's Prime Minister Algirdas Butkevicius holds a euro banknote during an event celebrating Lithuania's joining the euro zone in Vilnius January 1, 2015. REUTERS/Ints Kalnins (LITHUANIA - Tags: BUSINESS POLITICS) 

Fireworks explode over the temple of the Parthenon atop the Acropolis hill during New Year's day celebrations in Athens January 1, 2015. REUTERS/Alkis Konstantinidis (GREECE - Tags: SOCIETY) 

Fireworks explode over the temple of the Parthenon atop the Acropolis hill during New Year's day celebrations in Athens January 1, 2015. REUTERS/Alkis Konstantinidis (GREECE - Tags: SOCIETY) 

A man dressed up as a toy solider stands on Wall St. in front of a TD Bank on New Year's Eve in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

U.S. soldiers from Dragon Troop of the 3rd Cavalry Regiment take part in their last exercise of 2014 near forward operating base Gamberi in Laghman province December 31, 2014. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: CIVIL UNREST POLITICS MILITARY) 

Lithuania's central bank governor Vitas Vasiliauskas (L to R), Minister of Finance Rimantas Sadzius and Prime Minister Algirdas Butkevicius hold euro banknotes during an event celebrating Lithuania's joining the euro zone in Vilnius January 1, 2015. REUTERS/Ints Kalnins (LITHUANIA - Tags: BUSINESS POLITICS) 

Choir Director Vago Ohanyan conducts the Professional Performing Arts School Choir as they sing Imagine on the floor of the New York Stock Exchange on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Fireworks light the sky over the Kibera Slums during New Year's celebrations in Nairobi January 1, 2015. REUTERS/Noor Khamis (KENYA - Tags: SOCIETY POVERTY) 

Fireworks light the sky over the Kibera Slums during New Year's celebrations in Nairobi January 1, 2015. REUTERS/Noor Khamis (KENYA - Tags: SOCIETY POVERTY) 

Traders Peter Tuchman (L) and Joseph Mastrolia work on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Traders Peter Tuchman (L) and Joseph Mastrolia work on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS TPX IMAGES OF THE DAY) 

Lithuania's Prime Minister Algirdas Butkevicius (L to R), central bank governor Vitas Vasiliauskas and Estonia's Prime minister Taavi Roivas attend event celebrating Lithuania's joining the euro zone in Vilnius January 1, 2015. REUTERS/Ints Kalnins (LITHUANIA - Tags: BUSINESS POLITICS) 

Lithuania's Prime Minister Algirdas Butkevicius holds euro banknote during an event celebrating Lithuania's joining the euro zone in Vilnius January 1, 2015. REUTERS/Ints Kalnins (LITHUANIA - Tags: BUSINESS POLITICS) 

Trader Peter Tuchman works on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

U.S. soldiers from Dragon Troop of the 3rd Cavalry Regiment take part in their last exercise of 2014 near forward operating base Gamberi in Laghman province December 31, 2014. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: CIVIL UNREST POLITICS MILITARY) 

Trader Michael Pistillo works on the floor of the New York Stock Exchange while wearing 2015 novelty glasses on New Year's Eve, the last trading day of the year, in New York December 31, 2014. REUTERS/Carlo Allegri (UNITED STATES - Tags: SOCIETY BUSINESS) 

Fireworks explode over Edinburgh castle during the Hogmanay street party celebrations in Edinburgh, Scotland December 31, 2014. REUTERS/Russell Cheyne (BRITAIN - Tags: SOCIETY) 

Fireworks explode over Edinburgh castle during the Hogmanay street party celebrations in Edinburgh, Scotland December 31, 2014. REUTERS/Russell Cheyne (BRITAIN - Tags: SOCIETY) 

Fireworks light the sky over St. Basil's Cathedral during New Year's celebrations in Red Square in Moscow January 1, 2015. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: SOCIETY) 

U.S. soldiers from Dragon Troop of the 3rd Cavalry Regiment take part in their last exercise of 2014 near forward operating base Gamberi in Laghman province December 31, 2014. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: CIVIL UNREST POLITICS MILITARY) 

Revellers sing and dance in Princes Street during the Hogmanay street party celebrations in Edinburgh, Scotland December 31, 2014. REUTERS/Russell Cheyne (BRITAIN - Tags: SOCIETY) 

A U.S. soldier from Dragon Troop of the 3rd Cavalry Regiment fires a rocket launcher on the last exercise of 2014 near forward operating base Gamberi in Laghman province December 31, 2014. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: MILITARY CONFLICT POLITICS) 

A U.S. soldier from Dragon Troop of the 3rd Cavalry Regiment fires a rocket launcher on the last exercise of 2014 near forward operating base Gamberi in Laghman province December 31, 2014. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: MILITARY CONFLICT POLITICS) 

Fireworks light the sky over the Kremlin's Spasskaya (Saviour) Tower, covered by scaffolding, during celebrations of New Year's Day in Red Square in Moscow January 1, 2015. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: ANNIVERSARY SOCIETY TPX IMAGES OF THE DAY) 

Fireworks light the sky over St. Basil's Cathedral and Kremlin's Spasskaya (Saviour) Tower, covered by scaffolding, during celebrations of New Year's Day in Red Square in Moscow January 1, 2015. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: ANNIVERSARY SOCIETY TPX IMAGES OF THE DAY) 

New York City police officers patrol Times Square during New Year's Eve celebrations in New York December 31, 2014. REUTERS/Keith Bedford (UNITED STATES - Tags: ANNIVERSARY SOCIETY) 

Revelers stand bundled from the cold as they fill Times Square during New Year's Eve celebrations in New York December 31, 2014. REUTERS/Keith Bedford (UNITED STATES - Tags: ANNIVERSARY SOCIETY) 

New York City police officers stand guard in Times Square during New Year's Eve celebrations in New York December 31, 2014. REUTERS/Keith Bedford (UNITED STATES - Tags: ANNIVERSARY SOCIETY) 

A woman with 2015 glasses stands among other revelers in Times Square during New Year's Eve celebrations in New York December 31, 2014. REUTERS/Keith Bedford (UNITED STATES - Tags: ANNIVERSARY SOCIETY) 

Revelers cheer in Times Square during New Year's Eve celebrations in New York December 31, 2014.REUTERS/Keith Bedford (UNITED STATES - Tags: ANNIVERSARY SOCIETY)