Weihnachten bei Obamas

dapdPeople walk along the beach at Kailua Bay not far from where first lady Michelle Obama and her daughters are staying in Kailua, Hawaii, Thursday Dec. 22, 2011. (Foto:Eric Risberg/AP/dapd)

REUTERSU.S. President Barack Obama waves from the Air Force One at Andrews Air Force Base near Washington December 23, 2011. Obama is traveling to Hawaii for the end-of-year holidays. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS TRANSPORT)

dapdA sign at Hickam Air Force Base welcomes President Barack Obama for his holiday vacation in Honolulu, Friday, Dec. 23, 2011. (Foto:Eric Risberg/AP/dapd)

REUTERSU.S. President Barack Obama (2nd L) arrives at Hickam Air Base near Honolulu, Hawaii, December 23, 2011. Obama and his family are spending the end-of-year holidays in Hawaii. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS)

REUTERSA woman takes a picture of U.S. President Barack Obama with her iPhone upon his arrival at Hickam Air Base near Honolulu, Hawaii, December 23, 2011. Obama and his family are spending the end-of-year holidays in Hawaii. REUTERS/Jason Reed (UNITE

dapdPresident Barack Obama and his dog Bo head for the motorcade after shopping at PetSmart, Wednesday, Dec. 21, 2011, in Alexandria, Va. (Foto:Carolyn Kaster/AP/dapd)

REUTERSU.S. President Barack Obama shops at Best Buy in Alexandria, Virginia December 21, 2011. Obama was in Alexandria doing some Christmas Shopping and stopped in a pizzeria for lunch. REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS BUSINESS TPX

EPAepa03040652 US President Barack Obama buys a dog bone and treats for his dog Bo as he shops for Christmas gifts at a PetSmart store in Alexandria, Virginia, USA, on 21 December 2011. EPA/KEVIN DIETSCH / POOL

REUTERSU.S. President Barack Obama selects a bone for his dog Bo at a pet store in Alexandria, Virginia December 21, 2011. Obama was in Alexandria doing some Christmas shopping and stopped in a pizzeria for lunch. REUTERS/Kevin Lamarque (UNITED STATES -

REUTERSU.S. President Barack Obama buys the Wii game "Just Dance 3" at Best Buy in Alexandria, Virginia December 21, 2011. Obama was in Alexandria doing some Christmas shopping and stopped in a pizzeria for lunch. REUTERS/Kevin Lamarque (UNITED STATES -

REUTERSU.S. President Barack Obama carries pizzas out of a restaurant in Alexandria, Virginia December 21, 2011. Obama was in Alexandria to do some Christmas shopping. REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS)

dapdPeople walk along the beach at Kailua Bay not far from where first lady Michelle Obama and her daughters are staying in Kailua, Hawaii, Thursday Dec. 22, 2011. (Foto:Eric Risberg/AP/dapd)