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Le Van

A Vietnamese soldier stands next to a hazardous warning sign by a runway at Bien Hoa air base, on the outskirts of Ho Chi Minh City, as US Defence Secretary Jim Mattis visits the former US air base on October 17, 2018. - The toxic legacy of the Vietnam War came under the spotlight again on October 17 when Mattis visits a former storage site for Agent Orange, which is blamed for birth defects and cancers among a million Vietnamese. (THOMAS WATKINS/AFP via Getty Images)

Trump halted an Agent Orange cleanup. That puts hundreds of thousands at risk for poisoning

Anna Maria Barry-Jester, Brett Murphy, Le Van