Cairo protest grows

A quarter-million Egyptians flooded into the heart of Cairo on Tuesday, demanding that President Hosni Mubarak step down.

Anti-government protesters shout slogans as they demonstrate in Tahrir, or Liberation, Square in Cairo, Egypt, Tuesday, Feb. 1, 2011. More than a quarter-million people flooded into the heart of Cairo Tuesday, filling the city's main square in by far the largest demonstration in a week of unceasing demands for President Hosni Mubarak to leave after nearly 30 years in power.(AP Photo/Emilio Morenatti)

Anti-government protesters shout slogans as they demonstrate in Tahrir, or Liberation, Square in Cairo, Egypt, Tuesday, Feb. 1, 2011. More than a quarter-million people flooded into the heart of Cairo Tuesday, filling the city's main square in by far the largest demonstration in a week of unceasing demands for President Hosni Mubarak to leave after nearly 30 years in power.(AP Photo/Emilio Morenatti)

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