Copy into your RSS Reader
Copy into your Podcast App
Demonstrator China Starshine holds up signs outside of City Hall in Portland last week.
Ross William Hamilton/The Oregonian/AP
September 12, 2012 Portland, Ore., is the largest American city not to add fluoride to its drinking water. Activists have been vocal, for and against a proposal to change that. The science shows that fears of side effects from small amounts of fluoride to protect teeth are unfounded.
<iframe src="http://www.npr.org/player/embed/161003171/161026512" width="100%" height="290" frameborder="0" scrolling="no">
NPR thanks our sponsors
Become an NPR sponsor