South Africa to return Gaddafi billions

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Libya's late leader, the deposed Colonel Gaddafi amassed a huge amount of wealth before he was killed. It's thought that up to a billion dollars worth was stashed in South Africa - and the government says it will give it back to the Libyans. We ask how easy it'll be to track the assets down. Life could be about to get a lot tougher for tax dodging companies and tax havens - next week the G8 will be discussing how to clamp down on them. We hear from our reporter in Ireland, which has been the focus of criticism for its tax policies. As Iranians prepare to go to the polls to elect their new president, we hear from Dubai to find out how traders have been affected by the Iran sanctions. Plus could drones be used for good deeds? And could we have needle-free vaccines? Our technology reporter Jane Wakefield is at the TED conference in Edinburgh where the world's leading thinkers and doers have been chatting about these ideas and more