People walk past tear gas, fired by security forces to disperse a group of supporters of President Abdoulaye Wade, outside the polling station where Wade was due to vote in the Point E neighborhood of Dakar, Senegal Sunday, March 25, 2012. Senegalese voters are deciding Sunday whether to give their 85-year-old president another term in office, or instead back his one-time protege Macky Sall in a runoff election that could oust the incumbent of 12 years. (AP Photo/Rebecca Blackwell)

Associated Press
People walk past tear gas, fired by security forces to disperse a group of supporters of President Abdoulaye Wade, outside the polling station where Wade was due to vote in the Point E neighborhood of Dakar, Senegal Sunday, March 25, 2012. Senegalese voters are deciding Sunday whether to give their 85-year-old president another term in office, or instead back his one-time protege Macky Sall in a runoff election that could oust the incumbent of 12 years. (AP Photo/Rebecca Blackwell)
People walk past tear gas, fired by security forces to disperse a group of supporters of President Abdoulaye Wade, outside the polling station where Wade was due to vote in the Point E neighborhood of Dakar, Senegal Sunday, March 25, 2012. Senegalese voters are deciding Sunday whether to give their 85-year-old president another term in office, or instead back his one-time protege Macky Sall in a runoff election that could oust the incumbent of 12 years. (AP Photo/Rebecca Blackwell)
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