A video released by the White Helmets, a team of volunteer rescue workers, shows men hosing down civilians after the reported chlorine gas attack Tuesday in Aleppo, Syria. White Helmets/Screenshot by NPR hide caption

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White Helmets/Screenshot by NPR

Civil defense workers wear gas masks near damaged ground in a village near the Syrian city of Idlib in May. Activists said there had been a chlorine attack. Abed Kontar/Reuters/Landov hide caption

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Abed Kontar/Reuters/Landov

In Syria, Chlorine Attacks Continue To Take A Toll

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A U.S. Air Force C-123 sprays herbicides on dense jungle beside a South Vietnamese highway on May 18, 1966. This aircraft is the last in a formation of three. Spray from the other two planes can be seen ahead. U.S. Air Force via AP hide caption

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U.S. Air Force via AP

Air Force Reservists Say Agent Orange Residue Damaged Their Health

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Melissa Downer and her family moved to Camp Minden, La., 11 years ago and live on three acres. The mother of three young daughters says they'll move if the M6 is burned in the open air. Kate Archer Kent/Red River Radio hide caption

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Kate Archer Kent/Red River Radio

EPA Push For Massive Munitions Burn Ignites Opposition In Louisiana

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Soldier of U.S. Army 173rd Airborne Brigade prior to an air analysis mission near an oil and gas separation plant at the Baba Gurgur oil field outside northern Iraq's town of Kirkuk in May 2003. Shamil Zhumatov/Reuters/Landov hide caption

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Shamil Zhumatov/Reuters/Landov

A United Nations vehicle carrying inspectors from the Organization for the Prohibition of Chemical Weapons leaves a hotel in Damascus last fall. Louai Behara/AFP/Getty Images hide caption

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Louai Behara/AFP/Getty Images

A Syrian woman cries as she leaves a residential block in Aleppo, Syria, reportedly hit by an explosives-filled barrel dropped by a government forces helicopter on March 18. Khaled Khatib/AFP/Getty Images hide caption

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Khaled Khatib/AFP/Getty Images

Syria Gives Up Chemical Weapons ... But A War Rages On

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Norwegian marines patrol the waters around the Norwegian frigate HNOMS Helge Ingstad, which was docked in Cyprus over the weekend. The frigate, and the Danish warship HDMS Esbern Snare, will escort Danish and Norwegian cargo ships transporting Syria's most dangerous chemical weapons. Pavlos Vrionides/AP hide caption

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Pavlos Vrionides/AP

On 'Morning Edition': Tom Goldman explains how chemicals will be removed from Syria

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