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How a new chief of staff will affect the Biden White House

How a new chief of staff will affect the Biden White House

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Can gun safety laws impact frequency of mass shootings?

Can gun safety laws impact frequency of mass shootings?

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Community seeks answers after deadly shooting in California

Community seeks answers after deadly shooting in California

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Sky Hopinka's unconventional ways of telling Native stories

Sky Hopinka's unconventional ways of telling Native stories

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Former anti-narcotics chief accused of protecting cartels

Former anti-narcotics chief accused of protecting cartels

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DeSantis defends blocking African American studies course

DeSantis defends blocking African American studies course

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Shiffrin makes history as most successful World Cup skier

Shiffrin makes history as most successful World Cup skier

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Salton Sea lithium deposits could help EV transition

Salton Sea lithium deposits could help EV transition

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Former FBI agent charged with violating Russian sanctions

Former FBI agent charged with violating Russian sanctions

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11 killed in California's 2nd mass shooting in 48 hours

11 killed in California's 2nd mass shooting in 48 hours

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Senators question Ticketmaster over monopoly concerns

Senators question Ticketmaster over monopoly concerns

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Classified documents found in Pence's Indiana home

Classified documents found in Pence's Indiana home

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5:29
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PBS News Hour

Earth’s ozone layer continues to recover, scientists report

In one of the great environmental success stories of our time, scientists say that a 35-year-old agreement has resulted in the steady and promising recovery of the Earth's ozone layer, a critical protective shield that blocks harmful ultraviolet radiation from the sun. Dr. Paul Newman, chief scientist for Earth sciences at NASA's Goddard Space Flight Center, joins William Brangham to discuss.
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