Kim Phuc, the girl in one of the unforgettable images of the Vietnam War, has been reunited for a BBC radio programme with Christopher Wain, the ITN correspondent who helped save her life 38 years ago.

When Chris last saw Kim, she was lying on a hospital bed with third-degree burns to more than half of her body, after a South Vietnamese napalm bomb attack.

It was 8 June 1972 and Chris and his crew had been in Vietnam for seven weeks, covering the conflict for ITN.

Then, 10 years later, a journalist from Germany tracked Kim down.

She was at university studying medicine but the Vietnamese government cut short her studies and ordered her back to her village to be filmed and interviewed. She was now a propaganda tool.

Even when she succeeded in resuming her studies, this time in Cuba, she was still expected to fulfil her duties as a "symbol of war".