Egyptian protestors pray near the government building in Alexandria on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Qin Haishi)
Egyptian protestors burn tyres near the government building in Alexandria on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Qin Haishi)
Egyptian protestors gather near the government building in Alexandria on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Qin Haishi)
Egyptian protestors gather near the government building in Alexandria on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Qin Haishi)
Protesters tear down the cement wall set up by police near Cairo's Tahrir Square on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Li Muzi)
Protesters clash with police near Cairo's Tahrir Square on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Li Muzi)
Egyptians gather at the Cairo's iconic Tahrir Square on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Li Muzi)
Protesters clash with police near Cairo's Tahrir Square on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Li Muzi)
Egyptians gather at the Cairo's iconic Tahrir Square on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Li Muzi)
A protester with his hands chained shouts slogans at the Cairo's iconic Tahrir Square on Jan. 25, 2013, during a massive demonstrations held nationwide to mark the second anniversary of the 2011 unrest that toppled former president Hosni Mubarak. (Xinhua/Li Muzi)