LAS VEGAS -- Federal appeals court judges debated their role in scientific policymaking yesterday as they dove into the long, bitter fight over the fate of an endangered fish in California's Sacramento-San Joaquin River Delta. A three-judge panel of the 9th U.S. Circuit Court of Appeals, sitting in Las Vegas, queried state and federal officials, water users and environmentalists closely on claims that have been brewing since the tiny delta smelt was listed as threatened under the Endangered Species Act in 1993. Go to story #1