A Palestinian labourer collects cauliflowers during harvest on a field in the West Bank village of Al-Fara near Jenin December 15, 2010. REUTERS/Abed Omar Qusini (WEST BANK - Tags: AGRICULTURE)

Arab officials attend the emergency session of the Arab Initiative Follow Up Committee at the Arab League headquarters in Cairo, Egypt Wednesday, Dec. 15, 2010. Washington abandoned efforts to restart the direct Israeli Palestinian talks and has begun a new round of mediated talks instead. (AP Photo/Nasser Nasser)

A Palestinian municipality worker places a star on top of a tree before the annual lighting ceremony of a Christmas tree at Manger Square in the West Bank town of Bethlehem December 15, 2010. REUTERS/Ammar Awad (WEST BANK - Tags: RELIGION)

A Christian Palestinian man helps a school girl decorate a nativity scene at the Latin Church of Visitation in the West Bank village of Zababida near Jenin December 16, 2010.REUTERS/Abed Omar Qusini (WEST BANK - Tags: RELIGION EDUCATION)

A Christian Palestinian school girl decorates a Christmas tree at a school in the Latin Church of Visitation in the West Bank village of Zababida near Jenin December 16, 2010 REUTERS/Abed Omar Qusini (WEST BANK - Tags: RELIGION EDUCATION)

A Palestinian Roman Orthodox Christian priest prays inside an old cave, residents say is used as a church, in the West Bank village of Aboud near Ramallah, ahead of Christmas December 16, 2010. REUTERS/Mohamad Torokman (WEST BANK - Tags: RELIGION)

Palestinian Roman Orthodox Christian children are reflected in a puddle of water as they march towards an old cave, residents say is used as a church, in the West Bank village of Aboud near Ramallah, ahead of Christmas December 16, 2010 REUTERS/Mohamad Torokman (WEST BANK - Tags: RELIGION)

A Palestinian Christian man stands in front of a mural depicting the Virgin Mary in the West Bank village of Aboud near Ramallah December 16, 2010. REUTERS/Mohamad Torokman (WEST BANK - Tags: RELIGION)

A Palestinian labourer cleans candelabras in the Church of the Nativity, the site revered as the birthplace of Jesus, in the West Bank town of Bethlehem, ahead of Christmas December 16, 2010. REUTERS/Ammar Awad (WEST BANK - Tags: RELIGION TRAVEL)

A Palestinian man sells traditional Arab food as Palestinians cross through a checkpoint into the West Bank town of Bethlehem December 16, 2010 REUTERS/Ammar Awad (WEST BANK - Tags: RELIGION TRAVEL)

A Palestinian woman looks at a food stall after crossing through a checkpoint into the West Bank town of Bethlehem December 16, 2010.REUTERS/Ammar Awad (WEST BANK - Tags: FOOD RELIGION TRAVEL)

A Palestinian woman walks with a child past a shadow of a cross cast by the Church of the Nativity, the site revered as the birthplace of Jesus, in the West Bank town of Bethlehem, before Christmas December 16, 2010.REUTERS/Ammar Awad (WEST BANK - Tags: RELIGION TRAVEL)
A Palestinian carpenter carves a wooden statue of the Virgin Mary and baby Jesus in a workshop in the West Bank city of Bethlehem, ahead of Christmas December 16, 2010. REUTERS/Ammar Awad (WEST BANK - Tags: RELIGION TRAVEL)

A Palestinian Roman Orthodox Christian girl looks at candles as they are lit inside an old cave which residents say is used as a church, in the West Bank village of Aboud near Ramallah, ahead of Christmas December 16, 2010. REUTERS/Mohamad Torokman (WEST BANK - Tags: RELIGION)

A Palestinian Christian girl sits in front of a mural depicting Jesus in the West Bank village of Aboud near Ramallah, before Christmas December 16, 2010 REUTERS/Mohamad Torokman (WEST BANK - Tags: RELIGION)

Palestinian man carries blackboard FILE - In this Wednesday, Dec. 8, 2010 file photo, a Palestinian man carries a blackboard from a school that was partially demolished by Israeli forces, in the village of Khirbet Tana near the West Bank city of Nablus. Children's chairs pulled out of a pile of rubble are all that's left of a schoolhouse that served 17 children of Palestinian herders in this encampment on a wind-swept West Bank plateau. (AP Photo/Nasser Ishtayeh)

Palestinians are seen near their belongings FILE - In this Sunday, Jan. 10, 2010 file photo, Palestinians are seen near their belongings after Israeli forces demolished structures in which they lived, in the village of Khirbet Tana near the West Bank city of Nablus. Children's chairs pulled out of a pile of rubble are all that's left of a schoolhouse that served 17 children of Palestinian herders in this encampment on a wind-swept West Bank plateau. (AP Photo/Nasser Ishtayeh)

In this photo taken Thursday, Dec. 16, 2010, Israeli project manager Gali Kahane sits in front of a computer in the office of Comply, an Israeli start-up that employs Palestinians, in Hod Hasharon, near Tel Aviv, Israel. Israeli-Palestinian peace talks may be stalled, but that hasn't stopped a small but steady trickle of Israeli technology companies from seeking to work with people on the other side of the decades-old conflict. Israeli CEOs say it's their way of bringing a little bit of peace to their troubled corner of the world, but they acknowledge the real reason being financial. (AP Photo/Oded Balilty)

A Palestinian man dressed in a Santa Claus outfit and holding a Palestinian flag reacts to a sound grenade fired by Israeli soldiers, not seen, during a weekly demonstration against Israel's separation barrier in the West Bank village of Maasarah, near Bethlehem, Friday, Dec. 17, 2010. Israel says the barrier is necessary for security while Palestinians call it a land grab.(AP Photo/Nasser Shiyoukhi)

A Palestinian man dressed in a Santa Claus outfit and holding a Palestinian flag protests behind Israeli soldiers during a weekly demonstration against Israel's separation barrier in the West Bank village of Maasarah, near Bethlehem, Friday, Dec. 17, 2010. Israel says the barrier is necessary for security while Palestinians call it a land grab (AP Photo/Nasser Shiyoukhi)

A Palestinian activist holds a Palestinian flag during a protest to show solidarity with Palestinian families against a Jewish settlement in the Sheikh Jarrah neighborhood in East Jerusalem December 17, 2010. REUTERS/Amir Cohen (JERUSALEM - Tags: POLITICS CIVIL UNREST)
An activist holds a signboard during a protest to show solidarity with Palestinian families against a Jewish settlement in the Sheikh Jarrah neighborhood in East Jerusalem December 17, 2010. REUTERS/Amir Cohen (JERUSALEM - Tags: POLITICS CIVIL UNREST IMAGES OF THE DAY)

News photographers run from an exploding sound and light grenade thrown by Israeli troops during a violent protest against Israel's security fence in the West Bank village of Bilin in this March 28, 2008 file photograph. REUTERS/Yannis Behrakis/Files

A Palestinian labourer cuts the leaves of a cauliflower during harvest on a field in the West Bank village of Al-Fara near Jenin December 15, 2010 REUTERS/Abed Omar Qusini (WEST BANK - Tags: AGRICULTURE)