Palestinian man waves flag at a rally in Jaffo City, May 14, 2011. The rally is to mark the 63rd anniversary of al-Nakba Day day. May 13th photo by Dima Vazinovich Flash90

Palestinian man waves flag at a rally in Jaffo City, May 14, 2011. The rally is to mark the 63rd anniversary of al-Nakba Day day. May 13th photo by Dima Vazinovich Flash90

Palestinian Hamas security forces stand guard at Rafah border terminal between Egypt and the southern Gaza Strip, on May 15, 2011, during a gathering to mark the 63th anniversary of the "Nakba" (catastrophe). Nakba means "catastrophe" in reference to the birth of the state of Israel 63 years ago in British-mandate Palestine, which led to the displacement of hundreds of thousands of Palestinians who either fled or were driven out of their homes during the 1948 war over Israel's creation. Photo by Abed Rahim Khatib / Flash 90

Palestinians rally along the Rafah border terminal between Egypt and the southern Gaza Strip, on May 15, 2011, during a gathering to mark the 63th anniversary of the "Nakba" (catastrophe). Nakba means "catastrophe" in reference to the birth of the state of Israel 63 years ago in British-mandate Palestine, which led to the displacement of hundreds of thousands of Palestinians who either fled or were driven out of their homes during the 1948 war over Israel's creation. Photo by Abed Rahim Khatib / Flash 90

A Palestinian boy holds a key made of wood, representing the key of a home lost during the creation of the state of Israel, at the Rafah border terminal between Egypt and the southern Gaza Strip, on May 15, 2011, during a gathering to mark the 63th anniversary of the "Nakba" (catastrophe). Nakba means "catastrophe" in reference to the birth of the state of Israel 63 years ago in British-mandate Palestine, which led to the displacement of hundreds of thousands of Palestinians who either fled or were driven out of their homes during the 1948 war over Israel's creation.Photo by Abed Rahim Khatib / Flash 90

A Palestinian woman holds a key made of wood, representing the key of home taken from a Palestinian family during the creation of the state of Israel, at the Rafah border terminal between Egypt and the southern Gaza Strip, on May 15, 2011, during a gathering to mark the 63th anniversary of the "Nakba" (catastrophe). Nakba means "catastrophe" in reference to the birth of the state of Israel 63 years ago in British-mandate Palestine, which led to the displacement of hundreds of thousands of Palestinians who either fled or were driven out of their homes during the 1948 war over Israel's creation.Photo by Abed Rahim Khatib / Flash 90

Palestinians rally along the Rafah border terminal between Egypt and the southern Gaza Strip, on May 15, 2011, during a gathering to mark the 63th anniversary of the "Nakba" (catastrophe). Nakba means "catastrophe" in reference to the birth of the state of Israel 63 years ago in British-mandate Palestine, which led to the displacement of hundreds of thousands of Palestinians who either fled or were driven out of their homes during the 1948 war over Israel's creation. Photo by Abed Rahim Khatib / Flash 90

Right-wing Jewish activists burn a Palestinian flag near the Harp bridge in Jerusalem as Palestinians clash with Israeli troops all over East Jerusalem and the West Bank on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. May 15, 2011. Photo by Oren Nahshon/FLASH90 **MAARIV OUT**

Right-wing Jewish activists burn a Palestinian flag near the Harp bridge in Jerusalem as Palestinians clash with Israeli troops all over East Jerusalem and the West Bank on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. May 15, 2011. Photo by Oren Nahshon/FLASH90 **MAARIV OUT**

Palestinians in the village of Issawia drag the rests of a burned car to make a barrier against the Israeli police during the clashes between Palestinians and Israeli troops on Nakba day. May 15, 2011. Photo by Ruben Salvadori/FLASH90

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Arab demonstrators marking the anniversary on the 63rd anniversary of Naka (catastrophe in Arabic), the term Arabs use to describe the uprooting of thousands of Palestinians with the 1948 creation of the state of Israel. hold Palestinian flags as they approach the village of Majdal Shams in the Golan Heights, between Syria and Israel, Sunday, May 15, 2011. Photo by Hamad Almakt/ Flash90 **MAARIV & AGENCIES OUT**

Israeli soldiers run past burning tires during clashes with Palestinian stone throwers at the Israeli manned Qalandia checkpoint between Jerusalem and the West Bank city if Ramallah on May 14, 2011, as Palestinians gather in the run up to tomorrow's 63rd anniversary of the 1948 creation of Israel, an event known to Arabs as the "nakba" or "catastrophe.photo by:Issam Rimawi flash 90

Israeli soldiers run past burning tires during clashes with Palestinian stone throwers at the Israeli manned Qalandia checkpoint between Jerusalem and the West Bank city if Ramallah on May 14, 2011, as Palestinians gather in the run up to tomorrow's 63rd anniversary of the 1948 creation of Israel, an event known to Arabs as the "nakba" or "catastrophe.photo by:Issam Rimawi flash 90

Israeli soldiers stand close to a barrier covered in murals during clashes with Palestinian stone throwers at the Israeli manned Qalandia checkpoint between Jerusalem and the West Bank city if Ramallah on May 14, 2011, as Palestinians gather in the runup to tomorrow's 63rd anniversary of the 1948 creation of Israel, an event known to Arabs as the "nakba" or "catastrophe.photo by:Issam Rimawi flash 90