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Six years ago, President Xi Jinping became the leader of China and the head of an economy that is crucial to the rest of the world.

This third film in the series explores the growing tension between China and the west over allegations that the Chinese state has engaged for years in large-scale industrial espionage and hacking to steal the west’s business secrets and technological know-how.

One former US official has described it as the 'largest transfer of wealth in human history'. China denies the charges – but growing anger in the US is fuelling the trade war with China.