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David, a 17-year-old resident of Shreveport, went missing from his home on Feb. 6, 1971. His last known whereabouts were recounted by his younger brother, who said David left the house located on Lola Lane on foot. David told his brother he was headed to Centenary College for a debate. He never returned.

The high heat of California wildfires transformed a benign metal into a toxic form, new research finds. Exposure to high levels of hexavalent chromium is linked to increased rates of lung cancer.

The National Weather Service warned of increased fire danger in the region due to a combination of critically dry fuels and very low relative humidity.

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.

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.

The controversy surrounding a highly anticipated robotics competition for teens from around the globe sometimes overshadowed an otherwise upbeat event focused on kids, robots and changing the world.

The Department of Homeland Security said earlier this year that it had evidence of Russian activity in 21 states. But they didn't inform individual states whether they were among those targeted.

House Speaker Kevin McCarthy told reporters he had a "productive" phone call with President Biden as he travels back to Washington. Negotiators for the pair will resume talks Sunday evening.

Casinos is Las Vegas are reopening Thursday, after being shuttered for more than two months. Workers there are eager to start getting paid again, but they're also worried about their health.

Total payments to farmers reached $46 billion, a record. Many received more than $100,000, yet didn't necessarily need the help.