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Edwards endorses Obama

Democrat John Edwards is endorsing former rival Barack Obama, fresh signs of the party establishment embracing the likely nominee even as Hillary Rodham Clinton refuses to give up her increasingly long-shot candidacy. Read more »

World News

Polar bears to be protected species

The Interior Department declared the polar bear a threatened species Wednesday, saying it must be protected because of the decline in Arctic sea ice from global warming. Read more »

Rescuers reach epicenter of China quake

Rescuers were scouring flattened mountain villages for thousands of victims and distributing air-dropped supplies to survivors, while 2,000 soldiers were sent to repair "extremely dangerous" cracks in the Zipingpu Dam. Read more »

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