American President Donald Trump’s tariff wars on the global goods trade were launched on the assumption that the United States (US) suffered because it ran huge deficits with most countries, so protective duties would bring investment and jobs back to the States. Most economists have described his reasoning as seriously flawed. It doesn’t require academic experts, however, to see the President’s decision to levy a 100 per cent tariff on films made in foreign countries as objectively irrational. Mr Trump appears to think that the US film industry has been “decimated” and has acted on the advice of one of