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A slew of cryptocurrencies saw their values plunge over the course of the last week. As they continue their wild rollercoaster ride, we examine the implications and hear why central banks around the world are considering creating their own digital currencies, from banking expert Frances Coppola. Also in the programme, as supplies of petrol and jet fuel have been reaching major cities on America's east coast with the Colonial Pipeline brought back on stream following a ransomware attack earlier in the month, we consider the politics of pipelines. Dr Ellen Wald is senior fellow with the Atlantic Council Global Energy Center and considers the impact a ransom payment made to deal with the hack is likely to have in future similar scenarios. And Neil Chatterjee of the Federal Energy Regulatory Commission tells us whether America's pipeline network is fit for purpose. Plus, as the Eurovision Song Contest gears up for this year's competition in front of a live audience in Rotterdam on Saturday, project director Alice Vlaanderen explains how this year's event will differ from previous incarnations.

(Picture: A Bitcoin token in front of a valuation chart. Picture credit: Getty Images.)