The curse of Agent Orange

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Millions left dead or deformed because of chemicals used in the Vietnam war, UK cigarette smoking warnings ignored, remains of the Nazi 'Angel of Death' discovered in Brazil, the Columbia Shuttle disaster which led to huge questions about American space safety and the unrest featured in the Oscar-nominated film, Roma, where Mexican students were killed by government-trained paramilitary troops. Photo: Child suffering from spinal deformity in rehabilitation centre in Saigon.