Voters wait in line to cast their votes outside tents erected to serve as polling stations, in the Guediawaye neighborhood of Dakar, Senegal Sunday, March 25, 2012. Senegalese president Abdoulaye Wade, whose decision to run for a controversial third term sparked violent pre-election protests, faces his former protege Macky Sall in Sunday's presidential run-off.(AP Photo/Rebecca Blackwell)

Associated Press
Voters wait in line to cast their votes outside tents erected to serve as polling stations, in the Guediawaye neighborhood of Dakar, Senegal Sunday, March 25, 2012. Senegalese president Abdoulaye Wade, whose decision to run for a controversial third term sparked violent pre-election protests, faces his former protege Macky Sall in Sunday's presidential run-off.(AP Photo/Rebecca Blackwell)
Voters wait in line to cast their votes outside tents erected to serve as polling stations, in the Guediawaye neighborhood of Dakar, Senegal Sunday, March 25, 2012. Senegalese president Abdoulaye Wade, whose decision to run for a controversial third term sparked violent pre-election protests, faces his former protege Macky Sall in Sunday's presidential run-off.(AP Photo/Rebecca Blackwell)
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