Article Photos: On 2nd term eve, Obama cites commitment to service 2/9

FILE - In this Jan. 20, 2009, file photo, Barack Obama, left, takes the oath of office from Chief Justice John Roberts, not seen, as his wife Michelle, holds the Lincoln Bible and daughters Sasha, right and Malia, watch at the U.S. Capitol in Washington. The inauguration of the U.S. president is traditionally a highly-scripted celebration, with seating charts, schedules, dress rehearsals, and planning committees that map each moment of the history-making day from start to finish. But sometimes the unexpected happens. A chief justice stumbles while administering the oath for instance. (AP Photo/Chuck Kennedy, Pool)