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As a freezing winter drives many of us indoors, some extreme athletes embrace the cold as a great way to burn calories and retrain the immune system while working out. Not so fast, physiologists say.

A dozen people were hurt on separate continents after police say motorists deliberately plowed through crowds of revelers just past Midnight.

U.S. Strategic Command faced a backlash after it tweeted about the Time's Square ball drop, adding that "if needed" it would "drop something much, much bigger."

Security forces were deployed nationwide to protect against New Year's Eve violence. The Champs Elysees in Paris was under extra watch after Yellow Vest protesters said they would join revelers.

Ireland is a country that's politics were once dominated by the Catholic Church and now abortion is legal. The change marks a significant milepost in the country's political evolution.

The State Department confirms the man has been arrested and detained by Russian authorities. Steve Inskeep talks to former ambassador Daniel Fried about options for a Trump administration response.

Brazil on Tuesday inaugurates its new far-right president. It marks a reversal of the pink-tide of leftist leaders elected in South America in the last two decades.

Kim Jong Un declared that --while denuclearization is still his goal — his nation may have to follow a "new path" if the U.S. insists on unilateral action on that issue.

It's Day 11 of the partial government shutdown, and there's no end in sight. Russian authorities arrest an American on spying charges. North Korea's leader has given his annual New Year's Day address.

Early in 2019, China hopes to land a rover — the first soft landing on the moon's far side. The mission is exploratory, and will lay groundwork for a trip by Chinese astronauts to the lunar surface.