President-elect Donald Trump's pick of Robert F. Kennedy Jr. to lead the Department of Health and Human Services has brought back a debate about fluoride in drinking water that many thought was settled decades ago. Meg Oliver takes a look at how a lack of fluoride can affect dental health.
Forecasters are warning that plunging subzero temperatures could cause trees to explode as a brutal bone-chilling snap is expected to wallop most of the country in the coming days. ...