Denis O’Brien is one of Ireland's richest men – thanks to his international telecoms business, Digicel. He's 65, white, a regular at Davos, apparently a friend of the Clintons, and a minority shareholder in Celtic FC. He's also the perhaps unlikely middleman in the campaign to get Britain and the European Union to pay reparations to Caribbean nations for their role in the transatlantic slave trade. "It is the single biggest issue in the Caribbean for the entire population," Mr O'Brien told Kamali Melbourne on the Sky News Daily podcast. Click to subscribe to the Sky News Daily wherever you...