Cairo protest grows

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

An Egyptian boy stands on an Egyptian flag as anti-government protesters crowd around in Tahrir, or Liberation, Square in Cairo on Tuesday, Feb. 1, 2011. More than a quarter-million people flooded into the heart of Cairo, 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/Tara Todras-Whitehill)

An Egyptian boy stands on an Egyptian flag as anti-government protesters crowd around in Tahrir, or Liberation, Square in Cairo on Tuesday, Feb. 1, 2011. More than a quarter-million people flooded into the heart of Cairo, 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/Tara Todras-Whitehill)

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