Former Swiss President Pascal Couchepin (L) shakes hands with Swiss Interior Minister Didier Burkhalter (R) as EPFL president Patrick Aebischer looks on in front of the new Learning Center building before it's official inauguration at the Swiss Federal Institute of Technology (EPFL) in Ecublens near Lausanne May 27, 2010. The building was designed by Japanese architects Kazuyo Sejima and Ryue Nishizawa of the Sanaa office and houses a library with more than 500,000 technical and scientific books, a bank, restaurants and working areas. REUTERS/Valentin Flauraud (SWITZERLAND)

Swiss Interior Minister Pascal Couchepin (R) hands over the "office key" to new Interior Minister Didier Burkhalter (L) during a hand-over ceremony in Bern October 30, 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin (R) hands over the "office key" to new Interior Minister Didier Burkhalter (L) during a hand-over ceremony in Bern October 30, 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin (L) and Thomas Zeltner, Director of the Federal Office of Public Health (BAG) leave a news conference after the weekly meeting of the Federal Council in Bern October 28, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin (L) and Thomas Zeltner, Director of the Federal Office of Public Health (BAG) leave a news conference after the weekly meeting of the Federal Council in Bern October 28, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin attends a news conference after the weekly meeting of the Federal Council in Bern October 28, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEADSHOT)

Outgoing Swiss Interior Minister Pascal Couchepin attends a news conference after the weekly meeting of the Federal Council in Bern October 28, 2009. REUTERS/Michael Buholzer (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin attends a news conference after the weekly meeting of the Federal Council in Bern October 28, 2009. REUTERS/Michael Buholzer (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on palliative care in Bern October 23, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin (R) and Thomas Zeltner, Director of the Federal Office of Public Health (BAG) attend a news conference on palliative care in Bern October 23, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Pierre-Yves Maillard (R), President of the conference of the cantonal health directors and outgoing Swiss Interior Minister Pascal Couchepin attend a news conference on palliative care in Bern October 23, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on palliative care in Bern October 23, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference after the weekly meeting of the Federal Council in Bern October 21, 2009. REUTERS/Michael Buholzer (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference after the weekly meeting of the Federal Council in Bern October 21, 2009. REUTERS/Michael Buholzer (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin arrives for a news conference after the weekly meeting of the Federal Council in Bern October 21, 2009. REUTERS/Michael Buholzer (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference after the weekly meeting of the Federal Council in Bern October 21, 2009. REUTERS/Michael Buholzer (SWITZERLAND)

Outgoing Interior Minister Pascal Couchepin (R) and Minister elected Didier Burkhalter (L) attend a Liberal Free Democratic Party (FDP) party meeting in Stans October 17, 2009. REUTERS/Romina Amato (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin leaves a Free Liberals Party (FDP) meeting in Stans October 17, 2009. REUTERS/Romina Amato (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin (R) reacts next to Minister elected Didier Burkhalte as delegates of the party applaud during a Free Liberals Party (FDP) meeting in Stans October 17, 2009. REUTERS/Romina Amato (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin (R) speaks to Minister elected Didier Burkhalter during a Free Liberals Party (FDP) meeting in Stans October 17, 2009. REUTERS/Romina Amato (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a Free Liberals Party (FDP) meeting in Stans October 17, 2009. REUTERS/Romina Amato (SWITZERLAND)

Francoise Gisou van der Goot is welcomed by Swiss Interior Minister Pascal Couchepin (R) during a reception in Bern October 12, 2009. Microbiologist from the Global Health Institute at the university of Lausanne van der Goot receives the 'Marcel Benoist prize' 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS SCI TECH)

Outgoing Swiss Interior Minister Pascal Couchepin (L) and Peter Indra, Vice Director of the Federal Office of Public Health (BAG) attend a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin (L) and Peter Indra, Vice Director of the Federal Office of Public Health (BAG) leave a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin gestures during a news conference on the health insurance premiums for the year 2010, in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Outgoing Swiss Interior Minister Pascal Couchepin (R) and Peter Indra, Vice Director of the Federal Office of Public Health (BAG) look at a document with health insurance premiums for the year 2010, before a news conference in Bern October 1, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEALTH)

Swiss Interior Minister Pascal Couchepin speaks to media after the weekly meeting of the Federal Council in Bern September 30, 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin speaks to media after the weekly meeting of the Federal Council in Bern September 30, 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS HEADSHOT)

Swiss Interior Minister Pascal Couchepin speaks to media after the weekly meeting of the Federal Council in Bern September 30, 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin speaks to media after the weekly meeting of the Federal Council in Bern September 30, 2009. REUTERS/Ruben Sprich (SWITZERLAND POLITICS HEADSHOT)

Swiss Justice Minister Eveline Widmer-Schlumpf (L) and Swiss Interior Minister Pascal Couchepin leave a news conference in Bern, after Switzerland's popular vote and the arrest of director Roman Polanski September 27, 2009. Polanski, whose turbulent life has on occasion come close to resembling the violent, perverse world of his movies, was arrested in Zurich on a 1978 U.S. arrest warrant for sex with a 13-year old. Zurich Cantonal Police spokesman Stefan Oberlin said the arrest of Polanski, who holds French citizenship, was carried out on instruction from the Federal Justice Department in Bern. REUTERS/Pascal Lauener (SWITZERLAND POLITICS ELECTIONS)

Swiss Interior Minister Pascal Couchepin speaks during a news conference after Switzerland's popular vote, in Bern September 27, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS ELECTIONS)

Swiss Justice Minister Eveline Widmer-Schlumpf (L) attends a news conference next to Swiss Interior Minister Pascal Couchepin after Switzerland's popular vote in Bern September 27, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS ELECTIONS)

Swiss Justice Minister Eveline Widmer-Schlumpf (L) attends a news conference next to Swiss Interior Minister Pascal Couchepin after Switzerland's popular vote in Bern September 27, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS ELECTIONS)

President of the National Council Chiara Simoneschi-Cortesi (L) says goodbye to the outgoing Swiss Interior Minister Pascal Couchepin as he leaves the National Council for the last time after his demission, during the autumn parliament session in Bern September 24, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS IMAGES OF THE DAY)

Outgoing Swiss Interior Minister Pascal Couchepin speaks to members of the National Council for the last time after his demission, during the autumn parliament session in Bern September 24, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin speaks to members of the National Council for the last time after his demission, during the autumn parliament session in Bern September 24, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin reacts as members of the National Council applaud as he leaves the National Council for the last time after his demission, during the autumn parliament session in Bern September 24, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS HEADSHOT)

Swiss Interior Minister Pascal Couchepin reacts as members of the National Council applaud as he leaves the National Council for the last time after his demission, during the autumn parliament session in Bern September 24, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS IMAGES OF THE DAY)

Swiss Interior Minister Pascal Couchepin (R) reacts as members of the National Council applaud as he leaves the National Council for the last time after his demission, during the autumn parliament session in Bern September 24, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin eats an apple as he walks down the stairs in the Swiss Federal Palace in Bern September 23, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Outgoing Swiss Interior Minister Pascal Couchepin speaks to members of the National Council during the autumn parliament session in Bern September 23, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS)

Members of the Council of State applaud Swiss Interior Minister Pascal Couchepin (L) as he leaves the Council of State for the last time after his demission, during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin speaks for the last time in front of the members of the Council of State during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND)

Homeopathic calmative drops and a glass of water are pictured in front of Swiss Interior Minister Pascal Couchepin during the debate on complementary medicine in the Council of State during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND)

A combo of four pictures shows Swiss Interior Minister Pascal Couchepin adding some homeopathic calmative drops to his glass of water, drinking it and reacting, during the debate on complementary medicine in the Council of State during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS IMAGES OF THE DAY)

Swiss Interior Minister Pascal Couchepin adds some homeopathic calmative drops to his glass of water, during the debate on complementary medicine in the Council of State during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND)

Swiss Interior Minister Pascal Couchepin (R) speaks to Pascal Strupler Director of the Federal Office of Public Health (BAG) in the National Council during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin (R) speaks to Pascal Strupler Director of the Federal Office of Public Health (BAG) in the National Council during the autumn parliament session in Bern September 22, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS)

Swiss Interior Minister Pascal Couchepin gestures in the Council of State during the autumn parliament session in Bern September 17, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS)

New elected Swiss ministers Didier Burkhalter (3L)is welcomed by Swiss President Hans-Rudolf Merz (L-R), Doris Leuthard, Pascal Couchepin, Moritz Leuenberger, Micheline Calmy-Rey, Eveline Widmer-Schlumpf, Ueli Maurer and Swiss Federal Chancellor Corina Casanova pose for photographs in Bern September 16, 2009. REUTERS/Peter Klaunzer/Pool (SWITZERLAND POLITICS ELECTIONS)

New elected Swiss ministers Didier Burkhalter (L-R), Swiss President Hans-Rudolf Merz, Doris Leuthard, Pascal Couchepin, Moritz Leuenberger, Micheline Calmy-Rey, Eveline Widmer-Schlumpf, Ueli Maurer and Swiss Federal Chancellor Corina Casanova pose for photographs in Bern September 16, 2009. REUTERS/Peter Klaunzer/Pool (SWITZERLAND POLITICS ELECTIONS)

Outgoing Swiss Interior Minister Pascal Couchepin (L) stands next to Swiss President Hans-Rudolf Merz (2L), Swiss Minister of Environment Moritz Leuenberger (2R) and Swiss Justice Minister Eveline Widmer-Schlumpf after his speech to the Swiss Federal Convention during the Winter Parliament Session in Bern September 16, 2009. REUTERS/Lukas Lehmann/Pool (SWITZERLAND)

Outgoing Swiss Interior Minister Pascal Couchepin reacts after his speech to the Swiss Federal Convention during the Winter Parliament Session in Bern September 16, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS ELECTIONS)

Outgoing Swiss Interior Minister Pascal Couchepin (L) gestures next to Swiss President Hans-Rudolf Merz (C) and Swiss Minister of Environment Moritz Leuenberger after his speech to the Swiss Federal Convention during the Winter Parliament Session in Bern September 16, 2009. REUTERS/Michael Buholzer (SWITZERLAND POLITICS ELECTIONS)

Outgoing Swiss Interior Minister Pascal Couchepin (top) gestures next to Swiss President Hans-Rudolf Merz after (middle) and Moritz Leuenberger Swiss Minister of Environment (bottom) after his speech to the Swiss Federal Convention during the Winter Parliament Session in Bern September 16, 2009. REUTERS/Pascal Lauener (SWITZERLAND POLITICS ELECTIONS)