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He's against the Iraq War, but he is not a pacifist and he sees foreign policy through an economic lens. Here's what you need to know.

Clean, safe drinking water is essential to life. To get that water, however, requires a sludge of chemicals, countless testings — and different treatment processes depending on where you live.

The city's 10-year plan to replace 900 miles of old pipes has been met with praise and criticism — and a lawsuit from residents who say the pipe work has raised lead levels in their drinking water.

The top Republican and top Democrat on the Senate intelligence panel are floating a bill that would mandate cooperation in encryption cases, but critics say it creates a dangerous "back door."

Stanford physicist Carl Wieman is on a quest to bury the big lecture in favor of evidence-based techniques. But it's not clear higher education is listening.

On the eve of the second anniversary of the Chibok kidnapping — an event that prompted the #BringBackOurGirls movement — CNN is airing a video that purportedly shows 15 of the kidnapped girls.

A North Dakota GOP committeeman says the party can do whatever it wants at the convention this summer — no matter how many primaries Trump wins.

Love seemingly was blind for one couple at a Montana bar, who were preoccupied with smooching as three gun-toting robbers entered and ransacked the cash register.

The theoretical physicist is part of a team that wants to send postage-stamp-size probes to our closest star system, Alpha Centauri. But can they get the proper permits?

A man's worm treatment in Thailand led researchers to test parasites for inflammatory bowel disease. Their ultimate goal is a remedy that would mimic what the worms do — without an infection.