EU Under Pressure From North and South

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It is 40 years since Britain voted to stay in the EU. Now, though, there is another referendum on the issue looming. Further south, Greece is piling on the pressure, too. The BBC's Adam Parsons reports from Brussels on the reactions to all this at the heart of Europe. Also on the programme, are modern techniques of salmon farming safe and sustainable? It is a controversial topic and one which will be high on the agenda of today's World Ocean Summit, taking place in Portugal. Fourteen of the biggest salmon farmers have launched a new initiative, promising to provide more details on the environmental, social and economic impact of their trade. It is being supported by the World Wildlife Fund, but some experts are unimpressed. Research from the US says music artists are increasingly making references to brand names in their songs, so why are so many musicians apparently selling out? The BBC's Theo Leggett has been finding out. Plus, we take a look back over the past week in business. Picture: EU flags in Brussels; Picture credit: Carl Court/Getty Images