U.S. President Barack Obama and his wife Michelle Obama arrive at the Grand Hotel in Oslo before attending the Nobel banquet December 10, 2009. Obama, accepting the Nobel Prize for Peace, on Thursday defended the right of the United States to wage “just wars” like the one in Afghanistan. In a speech at the award ceremony in Oslo, preceded by a fanfare of trumpets, Obama declared he would not “stand idle” in the face of threats to the United States. REUTERS/Lise Aserud/Scanpix (NORWAY POLITICS SOCIETY) NORWAY OUT. NO COMMERCIAL OR EDITORIAL SALES IN NORWAY. NO COMMERCIAL SALES