Callista Gingrich, wife of Republican presidential candidate, former House Speaker Newt Gingrich meets with Republican supporters at a Smashburger restaurant, Tuesday, Feb. 14, 2012,

Yamda Johnson, kisses a signed photo of Whitney Houston as she and her friend Regina Kujemya both from Staten Island, N.Y., pay their respects at New Hope Baptist Church, in Newark, N.J., Wednesday, Feb. 15, 2012.

Sudanese Mutasim Qamrawi, 22, shows his scars from four months he was held in captivity by smugglers in Egypt's Sinai desert, at a shelter in Tel Aviv, Israel, Thursday, Feb. 16, 2012.

Carnival dancers perform on a float during a parade by the Perola Negra samba school in Sao Paulo, Brazil, early Sunday Feb. 19, 2012.

A young woman injured in violent clashes between police and anti-government protesters is transported to an ambulance by emergency responders from the Senegalese Red Cross, in central Dakar, Senegal Friday, Feb. 17, 2012. Anti-government protesters and po

Kyle Busch (18) slides sideways to avoid a wreck as Jeff Gordon (24) heads to the wall before his car slid on its side and then rolled, during the NASCAR Budweiser Shootout auto race at Daytona International Speedway, Saturday, Feb. 18, 2012, in Daytona B

Firefighters try to contain a fire at an informal diesel fuel depot in Lagos, Nigeria on Thursday, Feb. 16, 2012.

A Buddhist monk prays at Tokyo's Ginza shopping district in Tokyo, Sunday, Feb. 19, 2012.

In this February 2012 photo released by Boubandjida Safari Lodge, the carcasses of elephants slaughtered by poachers are seen in Boubou Ndjida National Park, located in Cameroon, near the border with Chad. Poachers have slaughtered at least 200 elephants

Ivory Coast's captain Didier Drogba, left, makes a penalty shootout against Zambia's goalkeeper Kennedy Mweene during their Africa Cup of Nations final soccer match at the Stade de l'Amitie in Libreville, Gabon, Sunday Feb. 12, 2012.

Olebogeng Tseleng, 21, is seen at her former Catholic school at Matlou, South Africa, Friday, Feb. 17, 2012. Impoverished and angry South Africans held a marathon march across a platinum-rich corner of the country Friday to demand that a multinational min

In this photo taken Monday, Feb. 13, 2012, Chief Francis Kariuki, left, is shown a gap in a fence that thieves escaped through, by village elder Peter Ndungu, right, in the village of Lanet Umoja, near Nakuru, in the Rift Valley of Kenya. Kariuki's latest