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Toxic Weapons in D.C.'s Midst

Scientists embark on the latest chapter in a 16-year, $170 million search for chemical munitions in D.C.'s Spring Valley neighborhood.

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Search for WWI Munitions Moves to Dalecarlia Woods
Article | The biggest mortars were fired from the concrete gun emplacement that still sits in the underbrush beside the driveway of Robert Herzstein's elegant home near American University in Northwest Washington.

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