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The price of gas keeps rising for Americans, but it's not because of rising demand from consumers. In fact, demand has fallen since 2007. Consumers' craving for hybrids and aversion to paying more at the pump are only part of the story.

The star of Italy's Euro 2012 team is the Sicilian-born son of Ghanaian immigrants, raised by an adoptive, white Italian family. Mario Balotelli has been subjected to racism on and off the field. Now, his success is prompting a rethink in a country that's notorious for its hostility to immigrants.

Four years of crippling drought has withered the agricultural economies of Great Plains states like Oklahoma. The USDA forecasts this year's wheat crop will be half what it would be in a good year.

The agency that runs Medicare said it doesn't plan to review the billings of doctors who almost always charge for the most expensive visits because it isn't cost-effective to do so.

Insurance enrollment will be a key yardstick for assessing whether the Affordable Care Act is working. Almost as important as the total number of people who get coverage is whether a significant percentage of them are healthy.

Ukrainian pianist Valentina Lisitsa decided to rev up her stalled-out career in a very 21st-century way: by putting up dozens of videos of herself playing core repertoire. Now she's a superstar by any traditional standard. Do her major-label recordings matter?

Sign up and see how you stack up against Tell Me More host Michel Martin, the Barbershop guys, and other Tell Me More fans just like you.

Is math a truth or a human invention? In this age-old question lies an interesting analogy with sports, and perhaps a resolution to the conundrum. Updatedwith sources for further reading on the math as invention vs. discovery controversy.

Farmers in the parched Central Valley are joining forces with farmworkers and a broad cross section of politicians to pressure the federal government to offer relief.

The death toll surpasses what had been the single deadliest day on the world's tallest mountain. Officials say all of those killed were Sherpa guides.