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How the Paris attacks may affect the U.S.-led war on ISIS

How the Paris attacks may affect the U.S.-led war on ISIS

How the Paris attacks may affect the U.S.-led war on ISIS

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Ambitious G-20 proposal for political transition in Syria

Ambitious G-20 proposal for political transition in Syria

Ambitious G-20 proposal for political transition in Syria

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Uncertainty, insecurity in Paris a day after deadly attacks

Uncertainty, insecurity in Paris a day after deadly attacks

Uncertainty, insecurity in Paris a day after deadly attacks

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Manhunt underway, as anger and sadness grip City of Light

Manhunt underway, as anger and sadness grip City of Light

Manhunt underway, as anger and sadness grip City of Light

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Coming to terms with acts of terror in Paris

Coming to terms with acts of terror in Paris

Coming to terms with acts of terror in Paris

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Fact or Fiction? Checking the Democrats’ debate statements

Fact or Fiction? Checking the Democrats’ debate statements

Fact or Fiction? Checking the Democrats’ debate statements

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EU, U.S. face vulnerabilities after IS attacks in Paris

EU, U.S. face vulnerabilities after IS attacks in Paris

EU, U.S. face vulnerabilities after IS attacks in Paris

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In a time of darkness, world stands with the City of Light

In a time of darkness, world stands with the City of Light

In a time of darkness, world stands with the City of Light

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Police scrutinize extremist ties of a Brussels neighborhood

Police scrutinize extremist ties of a Brussels neighborhood

Police scrutinize extremist ties of a Brussels neighborhood

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Paris attacks bring migrant crisis to political forefront

Paris attacks bring migrant crisis to political forefront

Paris attacks bring migrant crisis to political forefront

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Republicans push back on Syrian refugee resettlement plan

Republicans push back on Syrian refugee resettlement plan

Republicans push back on Syrian refugee resettlement plan

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Sanders: Turning away refugees destroys the idea of America

Sanders: Turning away refugees destroys the idea of America

Sanders: Turning away refugees destroys the idea of America

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PBS News Hour

What authorities are asking about the Paris attacks tonight

Who is capable of conducting the multiple-target attack that terrorized Paris on Friday night? Judy Woodruff talks to Lorenzo Vidino of George Washington University.