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Jeb Bush joins presidential primary field

Jeb Bush joins presidential primary field

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11:33
Impoverished Greeks fearful as default deadline looms

Impoverished Greeks fearful as default deadline looms

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8:43
The extraordinary life of Stalin’s daughter

The extraordinary life of Stalin’s daughter

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7:17
What would an end to the embargo mean for Cuba?

What would an end to the embargo mean for Cuba?

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8:18
Will development hurt or help Cuba’s iconic architecture?

Will development hurt or help Cuba’s iconic architecture?

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7:29
Why does almost half of America’s food go to waste?

Why does almost half of America’s food go to waste?

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9:05
Al-Qaida head killed in air strike

Al-Qaida head killed in air strike

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5:43
Gen. John Allen on the struggle against Islamic State

Gen. John Allen on the struggle against Islamic State

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8:46
FDA orders elimination of trans fats within next three years

FDA orders elimination of trans fats within next three years

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4:29
To cope with Ebola tragedy, this scientist turned to rock

To cope with Ebola tragedy, this scientist turned to rock

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3:23
Is the world’s fresh water supply running out?

Is the world’s fresh water supply running out?

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4:54
Are ex-cons being unfairly barred from jobs?

Are ex-cons being unfairly barred from jobs?

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5:06
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PBS News Hour

Six people in Hawaii try to prove we can survive on M

A NASA-funded study is focusing on the psychological impact of a potential mission to Mars. For the past eight months, six people have been living in a self-sustaining 1,000 square-foot dome on the Mauna Loa Volcano in Hawaii, cut off from the outside world. It is the longest space-travel simulation to take place in the United States. Saskia de Melker reports.
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