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Open Image ModalPalestinian girls take part in a march in the West Bank refugee camp of Al-Fareah near Tubas to mark Nakba Day, Wednesday, May 15, 2013. (AP Photo/Mohammed Ballas) (credit:AP)
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Open Image ModalPalestinian women hold symbolic keys and chant "the right of return will not die," during a rally to mark the Nakba Day in the West Bank town of Ramallah, Wednesday, May 15, 2013. (AP Photo/Majdi Mohammed) (credit:AP)
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Open Image ModalA Palestinian boy wears a bandana which in Arabic that reads, "coming to Jerusalem," during a rally to mark the Nakba Day in the West Bank town of Rramallah, Wednesday, May 15, 2013., Tuesday, May 14, 2013. (AP Photo/Majdi Mohammed) (credit:AP)
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Open Image ModalA masked Palestinian throws back a tear gas canister during clashes after a rally marking the Nakba Day outside the West Bank town of Hebron, Wednesday , May 15, 2013. (AP Photo/Nasser Shiyoukhi) (credit:AP)
(05 of21)
Open Image ModalA Palestinian woman holds replicas of house keys, representing the front door keys of abandoned homes, as she attends a Nakba day or 'Day of Catastrophe' rally in Gaza City, on May 15, 2013. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
(06 of21)
Open Image ModalPalestinian girls hold up their national flag during a rally marking Nakba (catastrophe) in the northern West Bank refugee camp of al-Fara on May 15, 2013. (SAIF DAHLAH/AFP/Getty Images) (credit:Getty Images)
(07 of21)
Open Image ModalPalestinian boys stand in line in a school yard as Palestinians remember the Nakba or the 'Day of Catastrophe', in the northern West Bank city of Nablus, on May 15, 2013. (JAAFAR ASHTIYEH/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA Palestinian man shows the deeds to his land during the Nakba or the 'Day of Catastrophe' commemorations in the northern West Bank city of Nablus, on May 15, 2013. (JAAFAR ASHTIYEH/AFP/Getty Images) (credit:Getty Images)
(09 of21)
Open Image ModalPalestinians holding replicas of house keys, representing the front door keys of abandoned homes, as they attends the 65th Nakba day or 'Day of Catastrophe' rally in Gaza City, on May 15, 2013. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalPalestinians watch a huge Palestinian flag being paraded during the 65th Nakba day or 'Day of Catastrophe' rally in Gaza City, on May 15, 2013. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalPalestinians wave their flag as they attend the 65th Nakba day or 'Day of Catastrophe' rally in Gaza City, on May 15, 2013. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA Palestinian girl holds a replica of a house key, representing the front door key of am abandoned home, as she attends the 65th Nakba day or 'Day of Catastrophe' rally in Gaza City, on May 15, 2013. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalPeople hold torches as Palestinians hold a rally to commemorate the 1948 creation of the Israeli state, known in Arabic as "Nakba Day," or "Day of the Catastrophe" in the West Bank town of Bethlehem, Tuesday, May 14, 2013. (AP Photo/Majdi Mohammed) (credit:AP)
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Open Image ModalA Palestinian protester argues with Israeli border policemen during a rally to commemorate the 1948 creation of the Israel state known in Arabic as the "Nakba Day", or "Day of the Catastrophe" outside the West Bank town of Bethlehem, Tuesday, May 14, 2013. (AP Photo/Nasser Shiyoukhi) (credit:AP)
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Open Image ModalAn Israeli border policeman fires a tear gas grenade during a Palestinian rally to commemorate the 1948 creation of the Israeli state known in Arabic as "Nakba Day", or "Day of the Catastrophe" outside the West Bank town of Bethlehem, Tuesday, May 14, 2013. (AP Photo/Nasser Shiyoukhi) (credit:AP)
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Open Image ModalA Palestinian child holds the national flag during a rally to commemorate Nakba day ahead of the wheat harvest near the border between Israel and Rafah in the southern Gaza Strip on May 14, 2013. (SAID KHATIB/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalPalestinian protestors hold up torches and pictures of their late leader Yasser Arafat and current leader Mahmud Abbas during a rally to commemorate the 1948 creation of Israel known in Arabic as the 'Nakba' (catastrophe) in the West Bank city of Ramallah May 14, 2013. (ABBAS MOMANI/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA Palestinian woman walks past a mural marking Nakba in Gaza City, on May 14, 2013 as Palestinians start to mark Nakba, or catastrophe in Arabic, which commemorates the exodus of hundreds of thousands of Palestinians after the establishment of Israel state in 1948. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA Palestinian woman has a Nakba (catastrophe) henna tattoo applied on her hand during a rally in Gaza City, on May 14, 2013, as Palestinians start to mark Nakba, or catastrophe in Arabic, which commemorates the exodus of hundreds of thousands of Palestinians after the establishment of Israel state in 1948. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA Palestinian woman holds a placard written in Arabic 'Safed' (northern Israeli town) and a key during a rally in Gaza City, on May 14, 2013 as Palestinians start to mark Nakba, or catastrophe in Arabic, which commemorates the exodus of hundreds of thousands of Palestinians after the establishment of Israel state in 1948. (MOHAMMED ABED/AFP/Getty Images) (credit:Getty Images)
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Open Image ModalA Palestinian man walks past a mural on a wall in the West Bank city of Jenin reading in Arabic: 'So that we don't forget the sacred right to return' on May 13, 2013, as Palestinians and Arab Israelis prepare to mark Nakba day, which commemorates the exodus of hundreds of thousands of their kin after the establishment of Israel state in 1948. (SAIF DAHLAH/AFP/Getty Images) (credit:Getty Images)