Law enforcement officers, emergency medical workers and lab technicians are trained to minimize their exposure to dangerous substances. The increasing use of powerful opioids — which are dangerous to inhale or even touch in very small amounts — is adding unpredictability to these risks.

Rural America and the issues faced by people who live in rural places are at the center of the national conversation. But once you go outside of our major cities, exactly what places are considered rural?

An effort to limit student use of social media in Madison public schools is turning out to be an interesting social experiment, and not entirely in the ways that school officials intended.

More than 12,000 dams populate the Great Lakes Basin, estimates the U.S. Geological Survey. Some produce energy or provide recreation. But most don't.