The crowd gathers in Tahrir, or Liberation, Square in Cairo, Egypt, Tuesday, Feb. 1, 2011. Tens of thousands of people flooded into the heart of Cairo Tuesday, filling the city's main square as a call for a million protesters was answered by the largest demonstration in a week of unceasing demands for President Hosni Mubarak to leave after nearly 30 years in power. (AP Photo/Khalil Hamra)

Clerics from Al Azhar Islamic university, lined up at center, address the crowd in Tahrir, or Liberation, Square in Cairo, Egypt, Tuesday, Feb. 1, 2011. Tens of thousands of people flooded into the heart of Cairo Tuesday, filling the city's main square as a call for a million protesters was answered by the largest demonstration in a week of unceasing demands for President Hosni Mubarak to leave after nearly 30 years in power. (AP Photo/Victoria Hazou)

A woman holds a flower 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/Tara Todras-Whitehill)

A girl standing on a man's shoulders reacts during a demonstration 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/Ben Curtis)

Demonstrators chant slogans 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/Khalil Hamra)

Young girls wave Egyptian flags atop an armored vehicle just outside 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/Victoria Hazou)

Egyptian anti-government protesters gathered in Tahrir (Liberation) square, watch a screen showing U.S. President Barack Obama live on a TV broadcast from Washington DC, speaking about the situation in Egypt, early Wednesday, Feb. 2, 2011. (AP Photo/Lefteris Pitarakis)

Egyptian anti-government protesters gathered in Tahrir (Liberation) Square, watch U.S. President Barack Obama, not seen, live on a TV broadcast from Washington, speaking about the situation in Egypt, early Wednesday, Feb. 2, 2011. Egyptian President Hosni Mubarak announced he will not run for a new term in September elections but rejected protesters' demands he step down immediately and leave the country, vowing to die on Egypt's soil, after a dramatic day in which a quarter-million Egyptians staged their biggest protest yet calling on him to go. (AP Photo/Lefteris Pitarakis)

Egyptian anti-government protesters take photos of one of the many and colorful placards with their camera phones at the continuing demonstration in Tahrir square in downtown Cairo, Egypt, Monday, Jan. 31, 2011. A coalition of opposition groups called for a million people to take to Cairo's streets Tuesday to demand the removal of President Hosni Mubarak. (AP Photo/Ben Curtis)

Demonstrators pray 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/Tara Todras-Whitehill)

The crowd gathers 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/Tara Todras-Whitehill)

Demonstrators hold banners 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/Lefteris Pitarakis)

Anti-government protesters pray, as others 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/Tara Todras-Whitehill)