In 1969 he began working at the Institute for the Intellectual Development of Children and Young Adults in Tehran, where he developed an affinity for stories about children and using documentary techniques.

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Sometimes it comes up with elaborate cover stories for the families to tell their neighbors back in Afghanistan to explain the missing children.

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Podcasts are essentially talk radio for your digital audio player, available on the Web for download, and cover content from politics to comedy to children's stories.

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Months of work goes into costumes and practising for the children's parade, which this year has the theme of stories and storytelling from ancient myths to modern graffiti art.

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Mr. Bradbury adapted his stories for TV, co-wrote the script for the 1956 film "Moby Dick" and produced children's books, poetry and text for coffee-table books.

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"We're already hearing stories about families living on at most one meal a day, children going into the bush to search for wild food and wild fruit, " Mr Lee told the BBC's Focus on Africa programme.

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