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Why Puerto Rico's 3rd governor in a week probably won't last

Why Puerto Rico's 3rd governor in a week probably won't last

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News Wrap: ICE arrests 680 undocumented workers in Miss.

News Wrap: ICE arrests 680 undocumented workers in Miss.

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Dayton's mayor on her grieving city, gun control and Trump

Dayton's mayor on her grieving city, gun control and Trump

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How Trump was received by grieving El Paso and Dayton

How Trump was received by grieving El Paso and Dayton

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El Paso shooting sparks fear among city's Latino majority

El Paso shooting sparks fear among city's Latino majority

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Tom Steyer on climate change, gun safety and impeachment

Tom Steyer on climate change, gun safety and impeachment

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Why El Paso residents feel 'deeply divided' about Trump

Why El Paso residents feel 'deeply divided' about Trump

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A former House Republican on why we need to reform gun laws

A former House Republican on why we need to reform gun laws

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How Grand Cayman is becoming a new health care destination

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Actor and director Ron Howard on the joy of storytelling

Actor and director Ron Howard on the joy of storytelling

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News Wrap: Guam’s Catholic diocese sued over alleged abuse

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Why massive Miss. ICE raids took communities by surprise

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PBS News Hour

Experts analyze the underlying causes of mass gun violence

How do we explain and stop mass shootings like those in El Paso and Dayton? Some Americans point to guns, saying they're too common and easy to obtain, while others emphasize the mental and emotional conditions that could drive perpetrators to inflict such horror. Amna Nawaz talks to Dr. Garen Wintemute of UC Davis Medical Center and Duke University's Jeffrey Swanson for analysis of both theories.
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