US relaxes Iran sanctions

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The US is preparing to relax some of its sanctions on Iran. American makers of mobile phones, computers and the software which runs them will soon be able to export to Iran. We hear how Washington wants to make it easier for Iranians to communicate with each other. Also, a Chinese firm wants to buy America's biggest pork producer - we ask whether it raises food security issues for the US. American economist Irwin Stelzer talks tax avoidance and why public money in Britain is now going into pop music - it's all the fault of reality shows, apparently.