Africa

Cairo spirals back into violence

Updated 12:26 AM ET, Thu November 24, 2011
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Protestors wearing gas masks gather near Cairo's Tahrir Square during clashes with police on November 23, 2011. AFP/Getty Images
A man sells gas masks to combat the effects of tear gas in Cairo's Tahrir Square on November 23, 2011. AFP/Getty Images
Protestors sit on a wall near Cairo's Tahrir Square after police withdrew on November 23, 2011. AFP/Getty Images
An Egyptian protester uses improvisation to protect his face and head from tear gas during clashes with riot police near Cairo's Tahrir Square on November 23, 2011. AFP/Getty Images
An injured Egyptian protester in heavy face bandages walks in Tahrir Square in Cairo on November 23, 2011. AFP/Getty Images
A protestor has his eyes sprayed to help counteract the effects of tear gas near Tahrir Square on November 22, 2011 in Cairo. AFP/Getty Images
A protester, his face sprayed with protective medical cream, covers his nose and mouth to avoid tear gas inhalation at Cairo's Tahrir Square on November 22, 2011. AFP/Getty Images
A protester wears a gas mask as tens of thousands of Egyptians pack Cairo's Tahrir Square on November 22, 2011. AFP/Getty Images
Egyptians protesters attend a funeral of a victim supposedly killed during clashes with Egyptian police in Tahrir Square on November 22, 2011. AFP/Getty Images
An injured Egyptian protester is helped away during clashes with security forces at Tahrir Square in Cairo on November 21, 2011. AFP/Getty Images
Eyptian protesters throw stones during clashes with security forces at Tahrir Square in Cairo on November 21, 2011. AFP/Getty Images
An Egyptian protester shows rubber bullet shells and tear gas canisters during clashes with riot police at Cairo's Tahrir Square on November 20, 2011. AFP/Getty Images
An Egyptian protester wears pictures of former Egyptian president Gamal Abdel Nasser during a rally in Cairo's Tahrir Square on November 18, 2011. AFP/Getty Images
Tens of thousands of Egyptian protesters wave national flags during a rally in Cairo's Tahrir Square on November 18, 2011. AFP/Getty Images