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After a bumpy 225-kilometre drive from a small airstrip in Tindouf, in south-western Algeria, a low, sprawling town begins to emerge from the dust of the desert. As the sun climbs into a cloudless sky, visitors catch their first glimpse of the Dakhla refugee camp. It isn't the most obvious setting for a film…

• In the first paragraph, the writer emphasises:
• According to the writer, the refugees have been in the desert for so long because: