Terrorism Terrorism

Protesters hold signs near the White House during a protest about President Trump's immigration policies on Wednesday. A proposed presidential action would freeze immigration from seven mostly Muslim countries for security reasons. But the list does not include any of the countries whose nationals have killed Americans in the U.S. since Sept. 11, 2001. Alex Brandon/AP hide caption

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Alex Brandon/AP

A man adjusts a victim's photograph displayed with floral tributes and Turkish flags outside the Reina nightclub following the attack in Istanbul earlier this month. Emrah Gurel/AP hide caption

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Emrah Gurel/AP

The Christmas market in Berlin was targeted in Monday's attack by a man driving a heavy truck into an area crowded with shoppers. Sean Gallup/Getty Images hide caption

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Sean Gallup/Getty Images

A memorial to the victims killed in San Bernardino, Calif., on Dec. 2, 2015. Nathan Rott/NPR hide caption

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Nathan Rott/NPR

San Bernardino Shooting's Signs Have Faded, But Memories Remain Piercing

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A member loyal to ISIS waves a flag in Raqqa, Syria, in 2014. Reuters hide caption

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Reuters

Inside The Islamic State's Movement To Spread Terror 'All Over The World'

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A cyclist looks at the flowers and messages placed along the beach for victims of the recent terrorist attack in Nice, France, on Wednesday. The recent spate of attacks around the world has raised questions about the limits of counterterrorism. Claude Paris/AP hide caption

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Claude Paris/AP

A Summer Of Terrorism Points To The Limits Of Counterterrorism

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French flags are seen lowered at half-staff in Nice on July 16. The truck attack on July 14 killed 84 people. "I felt coming to celebrate on holiday and people are in mourning didn't seem right," one vacationer says. "But I'm glad I came." Valery Hache/AFP/Getty Images hide caption

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Valery Hache/AFP/Getty Images

In Nice, Residents And Tourists Struggle To Adjust After Attack

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U.S. Marine Corps veterans John Tiegen (left) and Mark Geist deliver a speech on the first day of the Republican National Convention on Monday. Joe Raedle/Getty Images hide caption

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Joe Raedle/Getty Images