Palestinians carry their national flag and pictures of the late Palestinian leader Yasser Arafat (R) and Palestinian President Mahmoud Abbas (L) during a march to mark the 61st anniversary of Nakba in Beirut May 15, 2009. Palestinians mark Nakba as a day of mourning for the establishment of Israel in 1948 after which an Arab-Israeli war brought the displacement of hundreds of thousands of Palestinians. Reuters Pictures 6 months ago

Palestinians carry their national flag and pictures of the late Palestinian leader Yasser Arafat (R) and Palestinian President Mahmoud Abbas (L) during a march to mark the 61st anniversary of Nakba in Beirut May 15, 2009. Palestinians mark Nakba as a day of mourning for the establishment of Israel in 1948 after which an Arab-Israeli war brought the displacement of hundreds of thousands of Palestinians.