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California regulators say autonomous cars should have a licensed driver, but a top Google engineer says that makes as much sense as putting a steering wheel or brake pedal in the back of a cab.

Millions of people want caffeine removed from their coffee. Millions more want caffeine added to their soda. Little-known caffeine factories, scattered across the world, satisfy both desires.

Long before cooking was common, early humans needed extra energy to fuel bigger bodies and brains. Scientists say simple stone cutting tools likely allowed small-toothed meat eaters to thrive.

Algorithms teach computers how to process language. But because they draw on human writing, they have some biases. Researchers are trying to weed out those problematic associations.

AT&T positions itself as the future competitor to cable, promising an era of experimentation and innovation. But consumer advocates raise a raft of concerns. Regulators will weigh both sides.

With presidential nominee Hillary Clinton holding a steady lead in key battleground states, Democrats led by President Obama are turning their attention to down ballot races. From Congress to the legislatures, the party is at a low water mark they hope to correct before Obama leaves office.

A former punk rocker, a former mayor and a multilingual epidemiologist are among the six nominees vying for the top job at the World Health Organization.

When a Pentagon official proposed flexible schedules at a town hall meeting, "They actually laughed at me," she says. But the schedules went into place. The military also now allows 1 to 3 years off.

Researchers analyzing recent drug spending in the U.S. say that high-priced drugs for rare diseases aren't having a widespread or significant effect on overall health care spending.

Virginia Democratic Sen. Tim Kaine and Indiana Republican Gov. Mike Pence are two mild-mannered, affable politicians who will certainly present themselves differently than their running mates.