Israeli soldiers arrest the Reuters staff photographer as he covers the weekly protest of foreign and Palestinian activists against the building of the controversial Israeli separation barrier in the West Bank village of Bilin, 13 April 2007. The barrier is a combination of concrete walls and wire fences running more than 650 kilometres (400 miles) north to south that Israel says is necessary to protect itself from Palestinian militants. However, large sections of it encroach on the West Bank, and the Palestinians call it a land grab. The International Court of Justice issued a non-binding ruling in 2004 that parts of the barrier in the West Bank are illegal and should be removed. The barrier is supposed to follow the Green Line that marks Israel's borders before the 1967 Six Day War, when the Jewish state captured the Golan Heights, east Jerusalem, the Gaza Strip and the West Bank.PHoto by Ahmad Gharabli /FLASH90

Foreign and Palestinian activists run for cover towards olive trees as tear gas grenades are fired by the Israeli military during the weekly protest against the building of the controversial Israeli separation barrier in the West Bank village of Bilin, 13 April 2007. The barrier is a combination of concrete walls and wire fences running more than 650 kilometres (400 miles) north to south which Israel says is necessary to protect itself from Palestinian militants. However, large sections of it encroach on the West Bank, and the Palestinians call it a land grab. The International Court of Justice issued a non-binding ruling in 2004 that parts of the barrier in the West Bank are illegal and should be removed. The barrier is supposed to follow the Green Line that marks Israel's borders before the 1967 Six Day War, when the Jewish state captured the Golan Heights, east Jerusalem, the Gaza Strip and the West Bank. Photo by Ahmad Gharabli /FLASH90

Foreign and Palestinian activists run for cover towards olive trees as tear gas grenades are fired by the Israeli military during the weekly protest against the building of the controversial Israeli separation barrier in the West Bank village of Bilin, 13 April 2007. The barrier is a combination of concrete walls and wire fences running more than 650 kilometres (400 miles) north to south that Israel says is necessary to protect it self from Palestinian militants. However, large sections of it encroach on the West Bank, and the Palestinians call it a land grab. The International Court of Justice issued a non-binding ruling in 2004 that parts of the barrier in the West Bank are illegal and should be removed. The barrier is supposed to follow the Green Line that marks Israel's borders before the 1967 Six Day War, when the Jewish state captured the Golan Heights, east Jerusalem, the Gaza Strip and the West Bank. Photo by Ahmad Gharabli /FLASH90

Foreign and Palestinian activists run for cover towards olive trees as tear gas grenades are fired by the Israeli military during the weekly protest against the building of the controversial Israeli separation barrier in the West Bank village of Bilin, 13 April 2007. The barrier is a combination of concrete walls and wire fences running more than 650 kilometres (400 miles) north to south that Israel says is necessary to protect it self from Palestinian militants. However, large sections of it encroach on the West Bank, and the Palestinians call it a land grab. The International Court of Justice issued a non-binding ruling in 2004 that parts of the barrier in the West Bank are illegal and should be removed. The barrier is supposed to follow the Green Line that marks Israel's borders before the 1967 Six Day War, when the Jewish state captured the Golan Heights, east Jerusalem, the Gaza Strip and the West Bank.PHoto by Ahmad Gharabli /FLASH90

Palestinian protestors hold up their national flag as they hide behind amongst olive trees as tear gas grenades are fired by the Israeli military during the weekly protest against the building of the controversial Israeli separation barrier in the West Bank village of Bilin, 13 April 2007. The barrier is a combination of concrete walls and wire fences running more than 650 kilometres (400 miles) north to south that Israel says is necessary to protect it self from Palestinian militants. However, large sections of it encroach on the West Bank, and the Palestinians call it a land grab. The International Court of Justice issued a non-binding ruling in 2004 that parts of the barrier in the West Bank are illegal and should be removed. The barrier is supposed to follow the Green Line that marks Israel's borders before the 1967 Six Day War, when the Jewish state captured the Golan Heights, east Jerusalem, the Gaza Strip and the West Bank.PHoto by Ahmad Gharabli /FLASH90

General view of the West Bank town of Bethlehem and the separation wall, April 13, 2007. Photo by Michal Fattal/Flash90.

Palestinian studends hang out during the break at Bethlehem University in the West Bank town of Bethlehem, April 13, 2007. Photo by Michal Fattal/Flash90.

Palestinian studends walk in the courtyard of Bethlehem University in the West Bank town of Bethlehem, April 13, 2007. Photo by Michal Fattal/Flash90.

Palestinian studends sit in the yard of Bethlehem University in the West Bank town of Bethlehem, April 13, 2007. Photo by Michal Fattal/Flash90.