Egypt mass protests challenge Islamist president - Article Photos 2/31

Egyptian security forces arrest a protester during clashes near Tahrir square in Cairo, Egypt, Tuesday, Nov. 27, 2012. Egyptian protesters and police clashed in Cairo on Tuesday just hours ahead of a planned massive rally by opponents of the country’s Islamist president demanding he rescinds decrees that granted him near-absolute powers.(AP Photo/ Khalil Hamra)