Cairo protest grows

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

Soldiers surround an unidentified Muslim cleric (center, in white) 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/Lefteris Pitarakis)

Soldiers surround an unidentified Muslim cleric (center, in white) 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/Lefteris Pitarakis)

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