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When a child suffers a concussion, it's very hard to tell if the brain injury will cause long-term problems. An experimental test that looks for bits of genetic material in spit might help.

That designation was removed in 2008, when the North Korean government pledged to dismantle its nuclear program. The president says additional sanctions will be imposed.

The Trump administration is increasingly using economic sanctions to try to influence behavior in North Korea, Venezuela and Russia. But the strategy doesn't always work — and can backfire.

Ethics experts question new Trump hotels being built during his presidency. The new Trump-associated line looks to capitalize on a nearby Grammy museum — and is also running into local politics

European weather sites posted imagery showing the swirling wind patterns and a waterspout over the Mediterranean. The low pressure system shared characteristics of tropical cyclones.

The pageant organizers are disappointed but plan to reschedule early next year. As for the criticisms that a pageant objectifies women, they have an answer.

We'll have the latest on the investigation into Russian interference in the 2016 election.

Sidewalk Labs, a sibling company to Google, plans to redevelop Toronto's waterfront as a high-tech, livable lab. Some residents wonder what a data-driven development could mean for privacy.

RALEIGH, N.C. (AP) — The nation's largest electric company has agreed to seek a lower rate increase on more than a million North Carolina customers and…

Science will one day explain visual perception and memory loss. But will it also explain romantic love and morality? Tania Lombrozo considers people's beliefs about what science can and can't explain.