A Palestinian sets fire to a tire during clashes between hundreds of Palestinians and Israeli soldiers outside the Ofer prison after a march marking the 65th Nakba day or "Day of Catastrophe" on May 15, in Betunia near the West Bank city of Ramallah.

A mounted Israeli policeman tries to disperse Palestinian protesters waving their national flag during clashes as demonstrators gathered outside Damascus gate in Jerusalem on May 15, to mark the 65th Nakba or "Day of Catastrophe"

A Palestinian protestor holds a Molotov cocktail and a lighter, ready to be used against Israeli security forces during clashes to mark Nakba Day near the West Bank city of Ramallah May 15. Palestinians clashed with Israeli forces in the occupied West Bank and at East Jerusalem on Wednesday during demonstrations to mark 65 years since what they call the Nakba (Catastrophe) when Israel's creation caused many to lose their homes and become refugees.

Palestinian protesters are stopped by Israeli soldiers during clashes after a rally marking Nakba Day in the Beit Omar village, north the West Bank city of Hebron, on May 15. Nakba Day is the annual day of commemoration of the displacement of Palestinians after the establishment of the state of Israel in 1948.

U.S. President Barack Obama and Palestinian President Mahmoud Abbas walk in the Church of the Nativity during their visit to the West Bank city of Bethlehem on March 22, 2013.

Obama meets Greek Orthodox Patriarch Theophilos III (3rd left) during a tour of the Church of the Nativity.

Obama tours the Hall of Names at the Yad Vashem Holocaust Museum in Jerusalem, alongside Avner Shalev (right), Chairman of the Yad Vashem Directorate, and Israeli Prime Minister Benjamin Netanyahu.

Obama pays his respects in the Hall of Remembrance at Yad Vashem after Marines laid a wreath on his behalf.

Obama listens to Netanyahu during their visit to the Children's Memorial at Yad Vashem.

Obama walks with Rabbi Israel Meir Lau in the Hall of Remembrance at Yad Vashem.

Palestinians hurl stones at an Israeli police vehicle during clashes next to the Ofer military prison, south of the West Bank town of Ramallah, on Feb. 25, 2013. Palestinians clashed with Israeli soldiers after the funeral of a Palestinian who died in an Israeli jail.

Palestinians carry the body of Arafat Jaradat during his funeral in the West Bank village of Se'eer, near Hebron, on Feb. 25, 2013. Jaradat's death in an Israeli jail on Saturday and a hunger strike by four other prisoners have raised tension in the West Bank, where stone-throwers have clashed repeatedly with Israeli soldiers in recent days.

A relative mourns during the funeral of Arafat Jaradat in Se'eer on Feb. 25, 2013.

Palestinians mourn over the body of Arafat Jaradat during his funeral on Feb. 25, 2013.

An Israeli soldier fires tear gas and rubber bullets at Palestinian stone throwers during clashes next to the Ofer military prison on Feb. 25, 2013.

A stone-throwing Palestinian protester uses a sling to throw back a tear gas canister fired by Israeli troops during clashes outside the Ofer military prison on Feb. 25, 2013.

An Israeli soldier runs to stop a Jewish settler as she tries to prevent a Palestinian farmer from ploughing his fields near the West Bank village of Jaloud on Jan. 2.

A worshipper prays in the Church of the Nativity, the site revered as the birthplace of Jesus, ahead of Christmas in the West Bank town of Bethlehem on Dec. 21, 2012.

Pilgrims from Italy join a procession through the Church of the Nativity down into the 'Grotto,' traditionally accepted as the birthplace of Jesus Christ, in the West Bank town of Bethlehem on Dec. 21. The church is one of the oldest in the world and pilgrims, tourists and Christian faithful are flocking to the town where Jesus was born in the lead-up to the Christmas festivities.

Palestinians surround a cart carrying a wooden statue of baby Jesus before a march in the West Bank town of Bethlehem on Dec. 20, 2012.

Palestinians celebrate in the West Bank city of Ramallaha on Nov. 29 after the U.N. General Assembly voted to recognize Palestine as a non-member state.

A Palestinian man shouts slogans during a rally in the West Bank city of Ramallah on Nov. 29 to support a resolution giving implicit recognition to Palestinian statehood.

Palestinian President Mahmoud Abbas, center, Palestinian Foreign Minister Reyad al-Maliki, right, and other members of the Palestinian delegation react after a United Nations vote on a resolution to upgrade the status of the Palestinian Authority to non-member observer status on Nov. 29.

Palestinian demonstrators throw shoes towards a banner with a picture of Palestinian Prime Minister Salam Fayyad, (not pictured), during a protest against the high cost of living in the West Bank city of Hebron, on Sept. 10. Elsewhere in the West Bank, demonstrators halted traffic with burning tires, schools were closed and store owners shuttered their shops. It was the most serious unrest since the demonstrations erupted last week.

Palestinian protesters throw shoes at a banner of Prime Minister Salam Fayyad during a demonstration against high living costs and the government in the West Bank city of Hebron on Sept. 10. Palestinian youths attacked a local police station and other government buildings in Hebron on Monday as protests against the rising cost of living in the occupied West Bank turned increasingly violent.

Israeli soldiers out on patrol at first light in the divided West Bank city of Hebron, on Sept. 10.

Palestinians security officers stand in front of protesters during demonstration against high living costs and the government in the West Bank city of Hebron on Sept. 10.

Palestinian demonstrators protect themselves from tear gas fired by Palestinian security forces (unseen), during a protest against the high cost of living in the West Bank city of Hebron, on, Sept. 10.

Workers inside the municipal building in the West Bank city of Hebron, on Sept. 10, where windows had been broken by Palestinians protesting over the increasing cost of living. Palestinians called a general strike in the West Bank protesting the high cost of living.

Palestinian protesters throw stones at police attempting to control the streets in the West Bank City of Nablus on Sept. 10. According to reports, some 25 policeman and protesters were wounded in the clashes. Cities across the West Bank ground to a halt as transport unions called a mass general strike in protest over rising petrol prices.