Workers in masks and protective clothing
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Repairing the damage caused by Agent Orange

24 July 2013 Last updated at 23:36 BST

Four decades after the end of the Vietnam War, it is believed three million people inside the country are suffering from the effects of Agent Orange, a herbicide used by the American military to uncover places the enemy could hide.

Now the US is helping to pay for a solution that would clean up the soil that still contains the toxic compound.

The BBC's Karishma Vaswani reports from Danang.