Swiss Defence Minister Ueli Maurer gestures during a news conference after the weekly meeting of the Federal Council in Bern November 30, 2011. Switzerland has chosen to replace its fighter jet fleet with Swedish defence and aerospace group Saab's JAS-39 Gripen. REUTERS/Pascal Lauener (SWITZERLAND - Tags: POLITICS MILITARY HEADSHOT)

A journalist reads a media release on the JAS-39 Gripen fighter jet during a news conference after the weekly meeting of the Federal Council in Bern November 30, 2011. Switzerland has chosen to replace its fighter jet fleet with Swedish defence and aerospace group Saab's JAS-39 Gripen. REUTERS/Pascal Lauener (SWITZERLAND - Tags: POLITICS MILITARY) HEADSHOT)

FIFA President Sepp Blatter exchanges the name signs as he arrives to address a news conference together with Mark Pieth (R) newly appointed chairman of the FIFA Independent Governance Committee in Zurich November 30, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SOCCER)

Birds take to the air as a helicopter flies over the Swiss Parliament building transporting the annual Christmas tree for the Federal square in Bern November 30, 2011. REUTERS/Pascal Lauener (SWITZERLAND - Tags: TRANSPORT TPX IMAGES OF THE DAY SOCIETY)

National Councillor of the Swiss People's Party (SVP) Bruno Zuppiger speaks to media after announcing his candidature as a successor for the Swiss Ministers elections in Bern November 28, 2011. The Swiss Parliament will elect the Swiss Ministers on December 14, 2011. REUTERS/Ruben Sprich (SWITZERLAND - Tags: POLITICS)

A boy looks at a string of onions at his stall at the annual "Zibelemaerit" onion market in Bern November 28, 2011. Farmers sell up to 50 tonnes of onions and garlic during the traditional one-day fall market in the city centre of Switzerland's capital on the fourth Monday of November. REUTERS/Ruben Sprich (SWITZERLAND - Tags: SOCIETY TPX IMAGES OF THE DAY)

Swiss People's Party (SVP) former Swiss Minister Christoph Blocher is surrounded by media after losing the election for Zurich's Councillor of State, November 27, 2011. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS ELECTIONS)

Newly elected Councillor of State Paul Rechsteiner (L) of the Swiss Social Democrats (SP) holds up a red rose in front of the dome in the eastern Swiss city of St. Gallen November 27, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: POLITICS ELECTIONS)

Alain Berset and Pierre-Yves Maillard speak to the media after their hearing in the SPS faction in the Swiss Parliament in Bern November 25, 2011. SPS announced the two candidates for the minister elections on December 14, 2011 in Bern. REUTERS/Ruben Sprich (SWITZERLAND - Tags: POLITICS)

Alain Berset and Pierre-Yves Maillard speak to media after their hearing in the SPS faction in the Swiss Parliament in Bern November 25, 2011. SPS announced the two candidates for the minister elections on December 14, 2011 in Bern. REUTERS/Ruben Sprich (SWITZERLAND - Tags: POLITICS ELECTIONS)

Patches of artificial snow from a snow cannon test lie on a ski piste during sunny autumn weather in the eastern Swiss mountain resort of Lenzerheide November 25, 2011. Following an extremely dry November with high temperatures, some ski resorts in the Swiss Alps have postponed their season opening weekends due to a lack of snow. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: ENVIRONMENT SOCIETY TRAVEL)

Horses graze in a snowless meadow next to a patch of artificial snow from a snow cannon test during sunny autumn weather in the eastern Swiss mountain resort of Lenzerheide November 25, 2011. Following an extremely dry November with high temperatures, some ski resorts in the Swiss Alps have postponed their season opening weekends due to a lack of snow. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: ENVIRONMENT TRAVEL ANIMALS TPX IMAGES OF THE DAY)

People enjoy the sunny autumn weather over the fog next to the chapel of the snowless central Swiss ski resort of Stoss, at 1,305 m above sea level, near Lake Lucern, November 24, 2011. REUTERS/Christian Hartmann (SWITZERLAND - Tags: ENVIRONMENT TRANSPORT TRAVEL)

Die Post newly designated CEO Susanne Ruoff attends a news conference in Bern November 22, 2011. REUTERS/Ruben Sprich (SWITZERLAND - Tags: POLITICS HEADSHOT BUSINESS TPX IMAGES OF THE DAY)

Die Post newly designated CEO Susanne Ruoff (L) shake hands with outgoing CEO Juerg Bucher as they arrive for a news conference in Bern, November 22, 2011. Die Post Chairman Peter Hasler is seen in the background. REUTERS/Ruben Sprich (SWITZERLAND - Tags: BUSINESS) HEADSHOT)

Die Post newly designated CEO Susanne Ruoff attends a news conference in Bern, November 22, 2011. REUTERS/Ruben Sprich (SWITZERLAND - Tags: BUSINESS HEADSHOT)

Adrian Amstutz reacts after the elections in the town hall of the canton Bern in Bern November 20, 2011. Amstutz was not elected as the Councillor of State. REUTERS/Michael Buholzer (SWITZERLAND - Tags: POLITICS ELECTIONS)

Newly elected Councillors of State Hans Stoeckli (L) and Werner Luginbuehl pose for photographers after their elections in the town hall of the Canton Bern in Bern November 20, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: POLITICS ELECTIONS)

Protesters from the Occupy movement stand at the windows of one of several buildings in a quadrangle owned by banking giant UBS in the financial district City of London November 18, 2011. REUTERS/Luke MacGregor (BRITAIN - Tags: POLITICS BUSINESS)

Swiss People's Party (SVP) President Toni Brunner (L) talks to (L to R) Christophe Darbellay, President of the Swiss Christian Democratic Party (CVP), CVP faction President Urs Schwaller and Christian Levrat, President of the Swiss Social Democratic Party (SP) before the traditional von Wattenwyl talks in Bern November 18, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: POLITICS)

Logos are seen on Swiss banks Clariden Leu (L) and Credit Suisse buildings at Bahnhofstrasse, in Zurich, November 15, 2011. Credit Suisse Group AG will integrate private bank Clariden Leu into its organisation, ending the 250 year-old Leu brand and cutting jobs to achieve 200 million Swiss francs ($220 million) in annual cost savings, Credit Suisse announced on Tuesday. REUTERS/Christian Hartmann (SWITZERLAND - Tags: BUSINESS EMPLOYMENT LOGO)

Zurich riot police officers carry a protester as they remove members of the Occupy Paradeplatz movement from the Lindenhof in Zurich November 15, 2011. Police began to clear the Lindenhof in downtown Zurich early on Tuesday morning, where protesters from the movement have been camping since October. REUTERS/Christian Hartmann (SWITZERLAND - Tags: BUSINESS CIVIL UNREST)

Swiss bank UBS CEO Sergio Ermotti attends a news conference in Zurich, November 15, 2011. UBS named Ermotti as its new chief executive on Tuesday, making permanent the 51-year-old Swiss banker's appointment as a temporary successor to Oswald Gruebel, who left the Swiss bank in September following a $2 billion rogue trading scandal. REUTERS/Christian Hartmann (SWITZERLAND - Tags: BUSINESS HEADSHOT)

Swiss bank UBS CEO Sergio Ermotti attends a news conference in Zurich, November 15, 2011. UBS named Ermotti as its new chief executive on Tuesday, making permanent the 51-year-old Swiss banker's appointment as a temporary successor to Oswald Gruebel, who left the Swiss bank in September following a $2 billion rogue trading scandal. REUTERS/Christian Hartmann (SWITZERLAND - Tags: BUSINESS TPX IMAGES OF THE DAY)

Swiss bank UBS CEO Sergio Ermotti (R) and Chairman Kaspar Villiger attend a news conference in Zurich, November 15, 2011. UBS named Ermotti as its new chief executive on Tuesday, making permanent the 51-year-old Swiss banker's appointment as a temporary successor to Oswald Gruebel, who left the Swiss bank in September following a $2 billion rogue trading scandal. UBS said the board had also decided to propose former Bundesbank boss Axel Weber to succeed Villiger as chairman at the annual general meeting in May, a year earlier than originally planned. REUTERS/Christian Hartmann (SWITZERLAND - Tags: BUSINESS)

Members of the Occupy Paradeplatz movement (C) look on as Zurich riot police officers stand guard during their removal from the Lindenhof in Zurich November 15, 2011. Police began to clear the Lindenhof in downtown Zurich on early Tuesday morning, where protesters from the movement have been camping since October. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS CIVIL UNREST BUSINESS CRIME LAW)

Zurich riot police officers block a street behind a "Occupy the World" sign as they remove members of the Occupy Paradeplatz movement from the Lindenhof in Zurich November 15, 2011. Police began to clear the Lindenhof in downtown Zurich on early Tuesday morning, where protesters from the movement have been camping since October. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS CIVIL UNREST BUSINESS CRIME LAW)

Zurich riot police officers carry a protester as they remove members of the Occupy Paradeplatz movement from the Lindenhof in Zurich November 15, 2011. Police began to clear the Lindenhof in downtown Zurich on early Tuesday morning, where protesters from the movement have been camping since October. REUTERS/Christian Hartmann (SWITZERLAND - Tags: POLITICS CIVIL UNREST BUSINESS CRIME LAW)

A protester walks between tents in the Lindenhof downtown Zurich November 14, 2011. Protesters from "Occupy Paradeplatz" have continued to protest in the Zurich camp in the Lindenhof for several weeks. REUTERS/Christian Hartmann (SWITZERLAND - Tags: CONFLICT POLITICS BUSINESS)

A motorcyclist makes his way past a branch office of Swiss Bank Sarasin in Basel, November 14, 2011. Swiss bank Julius Baer is poised to announce a bid to buy rival Sarasin on Monday from Dutch Rabobank, a Swiss news website reported. REUTERS/Christian Hartmann (SWITZERLAND - Tags: BUSINESS)

People enjoy the look at the clouds during sunny autumn weather from the Chaenzeli panorama view point at Mount Rigi , at 1,797 m (5,896 ft) above sea level, near Lake Lucerne November 13, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY)

Candidates for the post of Swiss Minister to replace Swiss President and Foreign Minister Micheline Calmy-Rey (not pictured) Alain Berset (L) and to Pierre-Yves Maillard wait before a hearing of the Swiss Social Democrats (SP) Women section in Bern November 12, 2011. Swiss Parliament will elect its Ministers on the upcoming December 14, 2011. REUTERS/Pascal Lauener (SWITZERLAND - Tags: POLITICS)

A man dressed in a costume and blindfolded under a mask attempts to behead a dead goose dangling from a rope during a performance of the Swiss custom, the "Gansabhauet", in the town of Sursee near Luzern November 11, 2011. The Gansabhauet, or knocking down of the goose, dates back to 1821. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SOCIETY ANIMALS)

A shoeshine boy cleans the shoes of Swiss Minister of Environment, Transport, Energy and Communications Doris Leuthard (L) during an exhibition tour after the opening of the transport.ch exhibition in Bern November 10, 2011. The utility vehicle exhibition transport.ch is open from November 10, till November 13, 2011. REUTERS/Pascal Lauener (SWITZERLAND - Tags: POLITICS TPX IMAGES OF THE DAY)

Fog covers the valleys behind as a man is abseiled from a cable car during an annual rescue exercise at the funicular to Mount Pilatus (2,128 m/6,982 ft) near Luzern November 9, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SOCIETY TPX IMAGES OF THE DAY)

A model poses with the Sun-Drop diamond during a media preview in Geneva, November 9, 2011. The 110.03 carats diamond has been graded Fancy Vivid Yellow, the highest color grading for a yellow diamond. The diamond will be sold in auction at Sotheby's Geneva on November 15 and expected to fetch US$11-15 million. REUTERS/Michael Buholzer (SWITZERLAND - Tags: ENTERTAINMENT BUSINESS TPX IMAGES OF THE DAY)

A one euro coin is melted with a welding torch in this photo illustration
taken in Bern November 8, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: BUSINESS TPX IMAGES OF THE DAY)

Switzerland's Roger Federer reacts as he holds the winners trophy after his victory in his final match against Kei Nishikori of Japan at the Swiss Indoors ATP tennis tournament in Basel November 6, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT TENNIS TPX IMAGES OF THE DAY)

Swiss Finance Minister Eveline Widmer-Schlumpf (R) and Hans Grunder, the president of the "Buergerlich Demokratische Partei" (BDP), smile during the first party meeting after the Swiss national elections in Kerzers November 5, 2011. REUTERS/Pascal Lauener (SWITZERLAND - Tags: POLITICS)

Catholic Bishop Charles Morerod , newly appointed bishop of the diocese Lausanne, Geneva and Fribourg walks after a news conference in Fribourg, November 3, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: RELIGION POLITICS)

Switzerland's Roger Federer poses with the trophy of the Number 1 History Award at the Swiss Indoors ATP tennis tournament in Basel November 1, 2011. Federer was awarded as most successful tennis player in the history of the tournament. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT TENNIS TPX IMAGES OF THE DAY)

Former U.S. senator Mike Gravel (C) talks to demonstrators at their camp at the Lindenplatz square in Zurich October 31, 2011. The demonstrators gather since two weeks in the camp to protest against bankers, financiers and politicians they accuse of ruining global economies and condemning millions to poverty and hardship through greed. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: POLITICS BUSINESS CIVIL UNREST)

Former U.S. senator Mike Gravel (C) talks to demonstrators at their camp at the Lindenplatz square in Zurich October 31, 2011. The demonstrators gather since two weeks in the camp to protest against bankers, financiers and politicians they accuse of ruining global economies and condemning millions to poverty and hardship through greed. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: POLITICS BUSINESS CIVIL UNREST)

Neuchatel Xamax's Bastien Geiger (L) fights for the ball with FC Servette's Francois Moubandje during their Super League soccer match in Geneva October 30, 2011. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SPORT SOCCER TPX IMAGES OF THE DAY)

Alexander Frei of FC Basel (FCB) jokes with Grasshopper Club's (GC) coach Ciriaco Sforza (L) after their Swiss Super League soccer match in Basel October 29, 2011.REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SOCCER)

People listen to speakers and hold placards during a protest against islamophobia and racism organized by the Islamic Central Council of Switzerland (ICCS), in Bern October 29, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: POLITICS RELIGION CIVIL UNREST)

Novartis Chairman of the Board Daniel Vasella talks with youth faction of the Socialist Party (Juso) protesters during "occupy villa Vasella" protest action in Risch near Zug, October 29, 2011. Juso demonstrators gather outside the villa of Novartis AG Chairman Vasella on Saturday in protest at hefty job cuts planned by the Swiss pharmaceutical company. Novartis AG is slashing 2,000 jobs in Switzerland and the United States to keep costs under control in the face of growing price pressures and the strong Swiss franc, the Swiss drugmaker said on Tuesday. REUTERS/Christian Hartmann (SWITZERLAND - Tags: HEALTH BUSINESS EMPLOYMENT CIVIL UNREST)

People carry banners and flags of the Swiss Unia union as they march past a Bentley luxury limousine during a demonstration in Basel October 29, 2011. Some thousand participants protested against planned job cuts at Swiss drugmaker Novartis AG and other companies. The banner is reading: 'Strike'. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS EMPLOYMENT CIVIL UNREST)

North Korea Vice Minister of Foreign Affairs Kim Gye-gwan delivers a statement outside of North Korea diplomatic mission in Geneva October 25, 2011. U.S. and North Korean officials began a second day of talks after a delay of several hours on Tuesday with the goal of getting wider nuclear disarmament negotiations back on track and improving their strained relationship. REUTERS/Denis Balibouse (SWITZERLAND - Tags: POLITICS)

A demonstrator paints a slogan on the ground in front of Swiss bank UBS in Zurich October 24, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: POLITICS BUSINESS CIVIL UNREST)

National Councillor Martin Baeumle and President of the Swiss Green Liberal Party (GLP) checks estimations as he attends a live debate in the Swiss Television studio during the parliamentary elections in Zurich, October 23, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: ELECTIONS POLITICS)

Switzerland's Liberal Free Democratic Party (FDP) President Fulvio Pelli awaits the start of a live debate live debate in the Swiss Television studio during the parliamentary elections in Zurich, October 23, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: ELECTIONS POLITICS TPX IMAGES OF THE DAY)

Switzerland's Liberal Free Democratic Party (FDP) President Fulvio Pelli checks estimations before live debate in the Swiss Television studio during the parliamentary elections in Zurich, October 23, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: ELECTIONS POLITICS TPX IMAGES OF THE DAY)

Employees of a private security company stand guard in front a tribune with fans of FC Basel (FCB) during a Swiss Super League soccer match against FC Zurich (FCZ) in Zurich October 23, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Liberal Free Democratic Party (FDP) President Fulvio Pelli is followed by reporters as he arrives to attend a live debate in the Swiss Television studio during the parliamentary elections in Zurich, October 23, 2011. REUTERS/Michael Buholzer (SWITZERLAND - Tags: ELECTIONS POLITICS TPX IMAGES OF THE DAY)

Riot police guard a train with fans of FC Basel (FCB) before a Swiss Super League soccer match against FC Zurich (FCZ) in at Zurich's Altstaetten station October 23, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SOCCER CIVIL UNREST)

Riot police guard a train with fans of FC Basel (FCB) before a Swiss Super League soccer match against FC Zurich (FCZ) in at Zurich's Altstaetten station October 23, 2011. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SOCCER CIVIL UNREST)

Solar Impulse's president Bertrand Piccard of Switzerland and members of the ground crew close the cockpit before the last test flight of the season with the Solar Impulse solar-powered HB-SIA prototype airplane at Payerne airport October 22, 2011. The Solar Impulse HB-SIA, which has 12,000 solar cells built into its 64.3-meter (193-foot) wings, is a prototype for an aircraft that its creators hope will carry out its first circumnavigation of the globe. REUTERS/Pascal Lauener (SWITZERLAND - Tags: TRANSPORT ENERGY)

Fifa President Sepp Blatter attends a news conference after the meeting of Fifa's Executive Committee at the Home of FIFA in Zurich, October 21, 2011. FIFA will re-open the case into the collapse of its former marketing partner ISL, president Blatter said on Friday. REUTERS/Christian Hartmann (SWITZERLAND - Tags: SPORT SOCCER HEADSHOT)

FC Sion President Christian Constantin (L) arrives at the office of Eric Cottier, Public Prosecutor of the Swiss Canton of Vaud, in Renens, near Lausanne, October 19, 2011. UEFA President Michel Platini will appear before a Swiss judge on Wednesday to explain why UEFA has not yet implemented a ruling ordering Sion's reinstatement to the Europa League. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SPORT SOCCER)