TEL AVIV — Palestinian infiltrators have succeeded in breaching Israel's new security fence and barrier system. Israeli security sources said Palestinian infiltrators have scaled the four-meter high concrete fence by using a simple ladder. The Israeli project calls for the establishing of a 730-kilometer fence at a cost of $1.9 billion. Most of the project consists of a concrete wall or chain-link fence with sensors, cameras and military patrols. In one case, the sources said, Arab infiltrators brought a ladder to the fence in the northeastern West Bank. They quickly scaled the fence and entered a waiting car that took...