Swearing age-old oath, Obama steps into 2nd term - Article Photos 12/24

Vice President Joe Biden takes the oath of office during the 57th Presidential Inauguration official swearing-in ceremony at the Naval Observatory on Sunday, January 20, 2013 in Washington. The oath is administered by US Supreme Court Justice Sonia Sotomayor as Dr. Jill Biden, right, looks on. (AP Photo/Saul Loeb, Pool)