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Surveying toxic waste sites flooded by Harvey

Surveying toxic waste sites flooded by Harvey

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3:59
In west Houston, evacuees eager to start repairs

In west Houston, evacuees eager to start repairs

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2:43
Putting North Korea’s nuclear test into context

Putting North Korea’s nuclear test into context

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4:33
A fashion company is paying to maintain Rome's Colosseum

A fashion company is paying to maintain Rome's Colosseum

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6:01
How does North Korea’s latest test affect U.S. options?

How does North Korea’s latest test affect U.S. options?

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11:06
Knocked out by Harvey, Beaumont’s water starts to flow

Knocked out by Harvey, Beaumont’s water starts to flow

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3:34
Will the end of DACA prod Congress into immigration action?

Will the end of DACA prod Congress into immigration action?

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7:46
News Wrap: Harvey death toll rises to 60

News Wrap: Harvey death toll rises to 60

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4:04
Has Trump been a friend to American workers?

Has Trump been a friend to American workers?

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6:16
As storm victims leave shelters, the most vulnerable remain

As storm victims leave shelters, the most vulnerable remain

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4:40
Remembering acclaimed poet John Ashbery

Remembering acclaimed poet John Ashbery

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5:10
Walter Becker, Steely Dan rocker, dies at 67

Walter Becker, Steely Dan rocker, dies at 67

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1:56
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PBS News Hour

Major companies try Bitcoin technology

Since it was introduced eight years ago, the digital currency Bitcoin has drawn attention for its rise in value. Like other digital currencies, it uses “blockchain” technology, which helps conduct transactions without using banks or credit card companies as conduits. Hari Sreenivasan spoke with Don Tapscott, co-author of "Blockchain Revolution," about the technology's potential.
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