Photographing children caught in conflict

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In 2011, British photojournalist Giles Duley lost both legs and an arm when he stepped on an IED in Afghanistan.

He was given a dire prognosis and was hospitalised for a year.

But Mr Duley went straight back into the field just 18 months after that horrific accident, determined to carry on reporting from some of the world's most violent war zones.

He told the BBC about his new book, One Second of Light, and about his youngest subjects - the children caught up in conflict.