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How freezing North Pole temperatures arrived at the U.S.

How freezing North Pole temperatures arrived at the U.S.

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3:51
Polar vortex hits Americans with another day of record cold

Polar vortex hits Americans with another day of record cold

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3:08
News Wrap: Iraq strikes back against al-Qaida militants

News Wrap: Iraq strikes back against al-Qaida militants

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4:04
Yellen is interested in the 'human face' of economics

Yellen is interested in the 'human face' of economics

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9:29
World Food Programme faces unusual quadruple food emergency

World Food Programme faces unusual quadruple food emergency

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5:44
Kate DiCamillo’s favorite children’s books for snow days

Kate DiCamillo’s favorite children’s books for snow days

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2:27
JPMorgan settles for $2.6 billion fine over Madoff fallout

JPMorgan settles for $2.6 billion fine over Madoff fallout

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7:43
Bill advances to restore benefits for long-term unemployed

Bill advances to restore benefits for long-term unemployed

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3:09
Are some U.S. school discipline policies too punitive?

Are some U.S. school discipline policies too punitive?

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10:10
Robert Gates critiques Obama, Congress in new war memoir

Robert Gates critiques Obama, Congress in new war memoir

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6:11
Syria security conditions unknown for weapons removal

Syria security conditions unknown for weapons removal

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5:37
What strides have we made in the war on poverty?

What strides have we made in the war on poverty?

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12:41
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PBS News Hour

Alzheimer's researchers seek better prevention

With no cure or successful treatment yet available, scientists are hoping to stave off Alzheimer's devastating debilitation by treating people before they show a single symptom. Jeffrey Brown reports on how researchers are looking at risk signs, lifestyle factors and alternative therapies to help keep brains healthy.
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