Science can be a battleground -- witness the politics of climate change, the teaching of evolution, the uncharted terrain of genetic modification and stem cell research, among other contentious issues. But when industries release untested chemicals into our environment -- putting profits before public health -- our children are the first to suffer. Nowhere is this more troubling than in the ongoing story of lead poisoning. On this week's Moyers & Company (check local listings), Bill talks with David Rosner and Gerald Markowitz, public health historians who've been taking on the chemical industry for years -- writing about the hazards of industrial pollution and the neglect of worker safety -- despite industry efforts to undermine them. Their latest book, Lead Wars: The Politics of Science and the Fate of America's Children, is the culmination of 20 years of research. Markowitz and Rosner warn that, for young children, there's no safe level of exposure to this dangerous toxin still lurk
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