Where did the idea for the "apartheid barrier" or security fence come from? It came from a series of incidents between Beit Jala and Gilo, in Israel

From Wikipedia:
Between 2000-2002, over 400 incidences of shooting from Beit Jala into Israeli Gilo took place.

The mostly Palestinian Christian residents of Beit Jala reported that their homes were used against their will by Muslim militant groups, and believed that the strategy was designed to effect a demographic change in the area. They point to the Tanzim militants' choice of Christian Beit Jala to shoot from over other places where they could have similarly targeted Jerusalem, and their specific positioning in or near Christian homes, hotels and churches such as St. Nicholas, as well as institutions like the Greek Orthodox club, and their knowledge that a slight deviation in Israeli return fire would harm the Christian buildings.

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In response, Israel built this wall, to protect its citizens.

The Palestinian Arabs were using the Christians as human shields, in hopes that the Israeli retaliation would sway Christian world opinion against Israel. How cynical and manipulative. How downright evil. Israel's response- to build a wall- a passive non-violent way to save lives until there is a real peace.