William Hirzy, a former U.S. EPA chemist, has a favorite example when discussing the role of science in government policy: fluoride in drinking water.
His view — and that of the EPA chapter of the National Treasury Employees Union — is that the chemical can be dangerous, possibly increasing the risk of bone cancer in young boys. But EPA has yet to change its 4-milligrams-per-liter drinking water standard (though a spokesman said the agency is “actively moving ahead” with an assessment)…
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