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Architects have come up with spectacular concepts for vertical farms that would grow crops in city skyscrapers. But many horticulturists think the future of vertical farming isn't in skyscrapers, but rather in large, indoor warehouses lit up magenta by superefficient LEDs.

An anti-vice crackdown in China has targeted mistresses and sex workers as part of a social problem, but mistresses have been an open secret in China for years.

Bobsled used to be an all-male sport until 2002. Even now, the women only race two-man, not four-man bobsled. Team USA features 2 summer Olympians as brakemen. Lauren Williams is a gold and silver medalist in the sprint. Lolo Jones did the hurdles in Bejing and London.

What rights do participants in an airline's frequent-flier plan have to their miles or points? That's the question before the U.S. Supreme Court on Tuesday, when the justices examine whether, and under what circumstances, frequent fliers can sue in these disputes.

The young ruler of North Korea stunned the world when he ordered his uncle executed. Now, observers are reading the tea leaves for a sign of what's to come.

History is being made Tuesday in Sochi, as women's ski jump makes its debut as an Olympic event. While men have competed in ski jumping for nearly a century, women have not been included in Olympic competition. They've been seeking equality in their sport for more than a decade. Tamara Keith was on hand to report on the day's events.

After Tuesday night's debate, several Democratic presidential candidates headed back to Iowa, which will hold the first contest in 2020.

Online disinformation campaigns thrive in big, polarizing moments for the country — and the impeachment inquiry is no exception.

The House is set to vote Friday on a $3 trillion coronavirus aid package. It was written entirely by Democrats, and Republicans are not on board.

Foreign policy takes up a big part of every president's job. With presidential campaigns on the horizon, many of the Democratic contenders have been working to beef up their foreign policy resumes.