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As China celebrates its Communist Party's centenary, relations between the world's two superpowers are in dire straits. With special access inside China we explore the deeper forces pushing US-Sino relations to the brink.
Is seeing believing? Not anymore. AI can now make fake video where real people say and do things they never did. Hamish Macdonald reports on deepfakes, the technology some fear will undermine civilisation as we know it.
There's a tech war being fought between the US and China. While the US has had the edge, China is catching up fast, investing heavily in A.I., robotics and surveillance. Will it overtake the US to dominate the 21st century?