The Concrete Facts about Trump’s Wall and China

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If the US is going to build a wall on their border with Mexico – it’s going to take a heck of a lot of concrete - millions of tonnes in fact. But as Wesley Stephenson finds out there is a unlikely winner from all this construction. But even with such a huge construction project the US is still a minnow when it comes to concrete use and it is often said that China used more concrete between 2008-2011 than the US did in the whole of the Twentieth Century. It sounds astonishing - but is it true? Presenter/Producer: Wesley Stephenson Image: Getty/Credit: David McNew / Stringer