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For the first time in 40 years, tooth decay among young children is rising. A new federal study shows an increase in the incidence of cavities in the baby teeth of children under five. KPBS reporter K

The federal government could override state decisions on where new power lines could be built. The Department of Energy has declared two parts of the country critical to the nation's electricity grid.

The groups target their efforts on the "golden" period when survivors are most likely to be found, a search-and-rescue expert says. Seven days after a disaster, that period generally comes to an end.

What should Congress do to help stimulate our nation's struggling economy? How should the government deal with the housing crisis? What kind of risk does the violence on the U.S.-Mexico border pose

Triumphant Republicans — having seized the House, narrowed their deficit in the Senate and won several key governorships — turned Wednesday to outlining a plan for rolling back the Democratic agenda.

Tuesday night's second presidential debate was an eye-opener, if you kept your mind open and your expectations not too high. Our

San Diego's researchers say a boost in embryonic stem cell funding will advance the search for cures at many local institutions.KPBS Radio's Tom Fudge has more.

After months of financial instability, Greece is at the tipping point of potential default. If it does, the repercussions are likely to ripple through the eurozone and across the Atlantic to the United States.

Aid workers scrambled Wednesday to help an estimated 3 million people affected by Tuesday's massive earthquake. The victims include workers for some of the world's best-known aid groups.

More than 100,000 Ohio jobs were lost this year, a result of the nation's economic crisis and, more specifically, a suffering auto industry. Ohio's unemployment rate of 7.2 percent, one of the highest in the country, has leaders in the Midwestern state asking Washington for help. Lt. Gov. Lee Fisher explains the extent of Ohio's labor crisis.