Many wells are going to be drilled to determine if an ancient lake under Darfur in western Sudan is still full of water. Would plentiful water end four years of bloody violence? Will water shortages lead to other conflicts around the world? Also, in a blow to President Pervez Musharraf, Pakistan's Supreme Court reinstates its chief justice and, on Reporter's Notebook, the White House says that by claiming Executive Privilege, the President can stop cases against his aides for Contempt of Congress.
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