The US President Donald Trump has pledged a 50% tariff on imports of copper, which is critical to electric vehicles, military hardware, semiconductors and a wide range of consumer goods. Sam Fenwick hears from experts in the industry. Also, shares in major US renewable companies took a hit after the President signed an executive order tightening their access to clean energy tax breaks. Plus how WeightWatchers, the weight management business, has emerged from a major debt restructuring.