In his Jerusalem office, Rabbi Chaim Richman has steeped himself in an unlikely mix of 2,000-year-old Judaic tradition and the latest in American cattle-breeding technology. His aim is to genetically engineer a perfect red heifer. If he succeeds, he believes it will open the way to destroying one of the holiest sites in Islam, the al-Aqsa mosque, and building a Jewish temple in its place.
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