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Extras

Video thumbnail: PBS NewsHour Nigerian schoolgirls remain in captivity

PBS NewsHour

Nigerian schoolgirls remain in captivity

Tim Cocks of Reuters joins Hari Sreenivasan via Skype from Lagos, Nigeria.

Nigerian schoolgirls remain in captivity

Video thumbnail: PBS NewsHour Viewers respond to risk of soccer concussions in kids

PBS NewsHour

Viewers respond to risk of soccer concussions in kids

Viewers respond to risk of soccer concussions for kids after they head the ball.

Viewers respond to risk of soccer concussions in kids

Video thumbnail: PBS NewsHour What threat do 'lone wolf' terrorists pose?

PBS NewsHour

What threat do 'lone wolf' terrorists pose?

What's behind these so-called "lone wolf" attacks and what threat do they pose?

What threat do 'lone wolf' terrorists pose?

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