Anti-government protesters offer their evening prayers Monday in front of an Egyptian army tank securing the area during a protest in Cairo's Tahrir Square. A coalition of opposition groups called for a million people to take to Cairo's streets Tuesday to demand the removal of Egyptian President Hosni Mubarak. (Associated Press)

Photo by: Lefteris Pitarakis

Anti-government protesters offer their evening prayers Monday in front of an Egyptian army tank securing the area during a protest in Cairo's Tahrir Square. A coalition of opposition groups called for a million people to take to Cairo's streets Tuesday to demand the removal of Egyptian President Hosni Mubarak. (Associated Press)