
Palestinians participate in a rally celebrating the 48th anniversary of the Fatah movement in the West Bank city of Nablus on Thursday, Jan. 3, 2013. (AP Photo/Majdi Mohammed)

Palestinians participate in a rally celebrating the 48th anniversary of the Fatah movement in the West Bank city of Nablus on Thursday, Jan. 3, 2013. (AP Photo/Majdi Mohammed)

Supporters of Egyptian President Mohammed Morsi chant slogans and wave his campaign posters outside the Presidential palace, background, in Cairo, Egypt, Friday, Nov. 23, 2012. Supporters and opponents of Egypt's Islamist president staged rival rallies Friday after he assumed sweeping new powers, a clear show of the deepening polarization plaguing the country.(AP Photo/Ahmed Abd el Fatah)

In this Tuesday, Oct. 30, 2012 photo, a rebel fighter belonging to the Liwa Al-Fatah takes cover as he aims at an enemy position from a school building during skirmishes with the Syrian army in the nearby Bustan Al-Pasha front line in Aleppo, Syria. (AP Photo/Narciso Contreras)

In this Tuesday, Oct. 30, 2012 photo, a rebel fighter belonging to the Liwa Al-Fatah takes cover as he aims at an enemy position from a school building during skirmishes with the Syrian army in the nearby Bustan Al-Pasha front line in Aleppo, Syria. (AP Photo/Narciso Contreras)

Associated Press photographs Tunisian activists protest outside the El Fateh mosque in Tunis, surrounded by police, in support of a hard-line Muslim known as Abu Yadh, on Monday. Police surrounded the mosque but did not enter.

Associated Press photographs Tunisian activists protest outside the El Fateh mosque in Tunis, surrounded by police, in support of a hard-line Muslim known as Abu Yadh, on Monday. Police surrounded the mosque but did not enter.

A Fateh missile of the Iranian Revolutionary Guard Corps is launched in a September 2009 drill near the city of Qom, 80 miles south of Tehran, in a show of force. Iran would likely retaliate for an Israeli attack with such missiles. (Associated Press)

Hamas leader Khaled Mashaal (left) and Palestinian Authority President Mahmoud Abbas are scheduled to meet next week to discuss actions on a deal reached in May to end a 4 1/2-year rift between Hamas and Mr. Abbas' Fatah party. (Associated Press)