And there are still no comprehensive studies on the impacts of this pollution on human health. On the contrary, some who have chosen to speak out have faced severe reprisals. Most notable had been the experience of John O’Connor, a gentle, gray-bearded family doctor who still speaks with an accent from his native Ireland. In 2003, O’Connor began to report that, while treating patients in Fort Chipewyan, he was coming across alarming numbers of cancers, including extremely rare and aggressive bile-duct malignancies. He quickly found himself under fire from federal health regulators, who filed
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