For decades, the drinking water at a Marine base in North Carolina was tainted with high levels of toxic chemicals. But a new report by the National Academies says the contamination can’t be linked to the health problems former residents have suffered. Host Jeff Young talks with a Marine who says his daughter died as a result of contaminated water; an Academy panel member who explains the exposures should be the basis of policy decisions; and an epidemiologist who says the National Academy report is lacking.