South Africa President Jacob Zuma, center, arrives for the inauguration ceremony of Nigeria President Goodluck Jonathan at the main parade ground in Nigeria's capital of Abuja, Sunday, May 29, 2011. ... more 
South Africa President Jacob Zuma, center, arrives for the inauguration ceremony of Nigeria President Goodluck Jonathan at the main parade ground in Nigeria's capital of Abuja, Sunday, May 29, 2011. Jonathan was sworn in Sunday for a full four-year term as president of Nigeria and is now faced with the challenge of uniting a country that saw deadly postelection violence despite what observers called the fairest vote in over a decade. less 
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Associated Press | Photo By Sunday Alamba
Sun, May 29, 2011 11:30 AM EDT