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Arsenic About-Face

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* Re “EPA Revokes New Arsenic Standards for Drinking Water,” March 21: From Science News magazine (March 17): “Chronic exposure to small amounts of arsenic in drinking water increases a person’s risk of cancer and other diseases.” At what point does knowingly poisoning public health become a criminal act? In another context would not poisoning the water supply be considered a terrorist act?

JUDITH SINGER

Los Angeles

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The latest salvo from the new “EPA” administrator rescinding the Clinton administration’s effort to lower arsenic levels in drinking water only confirms what environmentalists have feared with President Bush’s election.

JANE COLLINS

Cherry Valley

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