African refugees sit on the ground behind a border fence after they attempted to cross illegally from Egypt into Israel as Israeli soldiers stand guard near the border with Egypt, in southern Israel, Tuesday, Sept. 4, 2012. Israel is staunching the flow of African migrants who have poured into the Jewish state by the tens of thousands, rapidly building a border fence and implementing a new policy of detaining Africans upon arrival. Israel’s army says over the past few days, a group of African migrants has waited on the Egyptian side of the fence. Israeli soldiers are providing the group with water, but not allowing them into Israel.(AP Photo/Ariel Schalit)