Anti-government protesters shout their demands Tuesday as they march toward Tahrir Square in Cairo. Egyptian authorities have sought to save President Hosni Mubarak's regime with a series of concessions and promises to protesters, but the democratic fervor in the streets may prevail. Mr. Mubarak has announced he will not run for re-election in September. (Associated Press)

Anti-government protesters shout their demands Tuesday as they march toward Tahrir Square in Cairo. Egyptian authorities have sought to save President Hosni Mubarak's regime with a series of concessions and promises to protesters, but the democratic fervor in the streets may prevail. Mr. Mubarak has announced he will not run for re-election in September. (Associated Press)