Calgary took fluoride out of its water supply in 2011, but it's reversing course. City council member Gian-Carlo Carra explains why he voted to remove fluoride and why he would vote differently today.
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Gurjit Kaur
Gurjit Kaur is a producer for NPR's All Things Considered. A pop culture nerd, her work primarily focuses on television, film and music.
Juana Summers is a political correspondent for NPR covering race, justice and politics. She has covered politics since 2010 for publications including Politico, CNN and The Associated Press. She got her start in public radio at KBIA in Columbia, Mo., and also previously covered Congress for NPR.
John Ketchum