January 31, 2013 (20 images)

Baltimore Ravens Ray Lewis speaks to the press during a media availability at the team hotel prior to Super Bowl XLVII in New Orleans on January 31, 2013. The Ravens will play the San Francisco 49ers in Super Bowl XLVII on February 3, 2013. UPI/Kevin Dietsch

Former Senator Chuck Hagel gives his opening statement before testifying before the Senate Armed Services Committee for his confirmation hearing for Secretary of Defense, in Washington, DC on January 31, 2013. UPI/Molly Riley

Members of the revolutionary guard hold an anti-US placard as they attend a celebration to mark the anniversary of 1979 return of Ayatollah Khomeini from exile at the mausoleum of the late revolutionary founder in Tehran, Iran on January 31, 2013. UPI/Maryam Rahmanian

Iranian women pass by the pictures of Iran's current leader Ayatollah Ali Khamene i(R) and Iran's late leader Ayatollah Khomeiniat at the mausoleum of Ayatollah Khomeini on January 31, 2013 in Tehran, Iran. Iranians gather at Khomeini's mausoleum to celebrate and to mark the anniversary of Islamic revolution when Khomeini returned from exile in 1979. UPI/Maryam Rahmanian