An Egyptian woman casts her vote during a referendum on the new Egyptian constitution at a polling station on December 15, 2012 in Cairo, Egypt. Egyptians went to vote in the first stage of the referendum on a draft constitution which has the support of President Mohamed Morsi and the Muslim brotherhood, and which has led to bitter oppostion and protest from liberals who claim that it is too Islamist.
- [Daniel Berehulak/Getty Images]

Egyptian voters queue at a polling station in central Cairo on December 15, 2012 to vote on a new constitution supported by the ruling Islamists but bitterly contested by a secular-leaning opposition.
- [Marco Longari/AFP/Getty Images]

Egyptian women vote on a new constitution supported by the ruling Islamists but bitterly contested by a secular-leaning opposition at a polling station in the Cairo neighbourhood of Shubra on December 15, 2012. President Mohamed Morsi cast his ballot in a polling station close to his presidential palace in the capital, state television showed, but he made no comment to the media.
- [Patrick Baz/AFP/Getty Images]

An elderly Egyptian man waits on a bench before casting his vote at a polling station in President Mohamed Morsi's hometown Zagazig in the Nile Delta on a new constitution supported by the ruling Islamists but bitterly contested by a secular-leaning opposition on December 15, 2012. Morsi's determined backing of the charter triggered the power struggle with the opposition, which is supported by judges who accuse the Islamists of overreaching.
- [Gianluigi Guercia/AFP/Getty Images]

An Egyptian woman casts her vote during a referendum on the new Egyptian constitution at a polling station on December 15, 2012 in Cairo, Egypt. Egyptians went to vote in the first stage of the referendum on a draft constitution which has the support of President Mohamed Morsi and the Muslim brotherhood, and which has led to bitter oppostion and protest from liberals who claim that it is too Islamist.
- [Daniel Berehulak/Getty Images]

An Egyptian Coptic priest (R) proceeds to cast his vote at a polling station in President Mohamed Morsi's hometown Zagazig in the Nile Delta on a new constitution supported by the ruling Islamists but bitterly contested by a secular-leaning opposition on December 15, 2012. Morsi's determined backing of the charter triggered the power struggle with the opposition, which is supported by judges who accuse the Islamists of overreaching.
- [Gianluigi Guercia/AFP/Getty Images]

An Egyptian girl waits with relatives queuing to vote at a polling station in central Cairo on a new constitution supported by the ruling Islamists but bitterly contested by a secular-leaning opposition on December 15, 2012.
- [Marco Longari/AFP/Getty Images]