Anti-government protesters pray Monday at Tahrir Square in Cairo. A coalition of opposition groups called for a million people to take to Cairo's streets Tuesday. The Arabic on the sign reads "I'm Egyptian, anti-destruction." (Associated Press)

Anti-government protesters pray Monday at Tahrir Square in Cairo. A coalition of opposition groups called for a million people to take to Cairo's streets Tuesday. The Arabic on the sign reads "I'm Egyptian, anti-destruction." (Associated Press)