The effect is most pronounced in counties with many drinking water wells, indicating that contamination by "produced water" from fracking is a likely cause.
On May 1, workers have a chance to confront Trump by turning the tricks of his trade back on him -- dealing in the language of power.
John Reed on Big Banks' Power and Influence from BillMoyers.com on Vimeo.
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Bill Moyers is the managing editor of Moyers & Company and BillMoyers.com.