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      Knowledge is Power

      Scientific American June 2001

      A Touch of Poison

      The EPA may weaken a regulation limiting arsenic in water

      • By Mark Alpert on June 1, 2001

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      More in the June 2001 issue of Scientific American
      • New Trick from Old Dog
      • The Mice That Warred
      • Brief Bits, June 2001
      View Full Contents
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