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Illegal immigrants in the US, President Bush, Cambodian temples and French engineering. As the UN urges more tolerance towards migrants our correspondent visits the US border with Mexico in Arizona, the so-called 'Tortilla Curtain'. Also following his electoral success, just how far will Bush's supporters will let him go? Archaeologists remove statues to protect Cambodia's temples and France's latest engineering success story, the world's tallest road bridge. Presenter: Lucy Wessely.
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