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America's biggest crypto-currency trading platform, Coinbase, begins trading on the Nasdaq exchange in New York today Paul Vigna of the Wall Street Journal explains just what the company does to make it quite so highly valued. The 主播大秀鈥檚 Rob Young spoke to the President of Coinbase, Emilie Choi, ahead of trading - she told us that the firm was taking a long term view. Plus, Bernie Madoff, the financier convicted of orchestrating the largest Ponzi scheme in history, has died in a US federal prison We hear from the son of one Madoff's victims, who took their own life after losing everything. Also in the programme, as crowd-funding has become a global phenomenon we hear from the CEO of its biggest platform, Tim Cadogan.

(Picture: The Coinbase logo for an US cryptocurrency exchange platform is seen on a smartphone screen with a Nasdaq logo in the background. / Credit: Pavlo Gonchar/Getty Images)