An Egyptian protester waves an Egyptian flag during a rally in Cairo's Tahrir Square, Egypt, Friday, March 18, 2011, as demonstrators call for a "no" vote in Saturday's referendum on constitutional amendments. A package of key constitutional amendments sponsored by Egypt's ruling military will be put to a nationwide vote on Saturday.
Credit: AP Photo/Khalil Hamra
Texas A&M's Dash Harris (5) and Florida State's Deividas Dulkys (4), of Lithuania, fight for a loose ball in the first half of a second-round NCAA Southwest Regional tournament college basketball game, in Chicago, Friday, March 18, 2011.
Credit: AP Photo/Jim Prisching
President Barack Obama leaves the podium after making a statement about Libya, Friday, March 18, 2011, in the East Room of the White House, in Washington.
Credit: AP Photo
An anti-government protester wearing a helmet and swimming goggles shouts slogans during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, Friday, March 18, 2011. Yemeni security forces, firing from rooftops and houses, shot at tens of thousands of anti-government demonstrators, killing at least 31 as the protesters entered a downtown square in the capital to demand the ouster of their autocratic president.
Credit: AP Photo/Muhammed Muheisen
Akane Ito hugs her dog Mei at an evacuation center in Natori, near Sendai, Miyagi Prefecture, Japan, Friday, March 18, 2011. Mei was returned to her today, seven days after she went missing following the earthquake triggered tsunami on March 11.
Credit: AP Photo/Mark Baker
A man walks among burnt metal debris following the tsunami in Kesennuma, Japan, Friday, March 18, 2011.
Credit: AP Photo/Matt Dunham
An African boy, child of migrant workers, dressed as Superman celebrates during the Purim parade in Tel Aviv, Israel, Friday, March 18, 2011. New residency criteria could result in the deportations of hundreds of children of foreign migrant workers. The Jewish holiday of Purim celebrates the Jews' salvation from genocide in ancient Persia, as recounted in the Scroll of Esther.
Credit: AP Photo/Ariel Schalit
MotoGP Ducati rider Valentino Rossi of Italy steers his bike during a free practice at the Losail International Circuit, in Doha, Qatar, Friday, March 18, 2011.
Credit: AP Photo/Hassan Ammar
Indian students smear each others face with colored powder during Holi festivities in Allahabad, India, Friday, March 18, 2011. Holi, the Hindu festival of colors, will be celebrated across the country on March 20.
Credit: AP Photo/Rajesh Kumar Singh
Haiti's former President Jean-Bertrand Aristide gestures as he is surrounded by security, supporters and journalists upon arrival to his home in Port-au-Prince, Haiti, Friday, March 18, 2011. Aristide, who was forced to flee Haiti due to a rebellion in 2004 aboard a U.S. plane, returned after seven years of exile in South Africa, days before Haiti's presidential runoff election Sunday.
Credit: AP Photo/Alexandre Meneghini