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Analysis

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Participants hold up signs at a Tea Party protest at the Oregon State Capitol in September. Historian Michael Kazin says the Tea Party movement is a problem for Democrats and for Republicans, too, who have to channel the discontent to their benefit and not be consumed by it. Matt Gillis/AP hide caption

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Matt Gillis/AP

Blue whales have been singing at an increasingly lower pitch year after year. Denis Scott/Corbis hide caption

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Denis Scott/Corbis

Blue Whales Croon A New Tune

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President Obama delivers his State of the Union address on Capitol Hill in Washington, Wednesday, Jan. 27, 2010. Tim Sloan/AP hide caption

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Tim Sloan/AP

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Producer Sasha Aslanian (right) and her brother, Joel, were 10 and 9 when their parents separated in 1978. Courtesy Sasha Aslanian hide caption

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Courtesy Sasha Aslanian

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Amanda Knox Trial A Tangle Of Cultural Tensions

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