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Saad Mohseni, known as the 'Rupert Murdoch of Afghanistan' talks to Lesley Curwen about the booming media business, corruption and what happens after western peacekeepers leave the country. Plus US behavioural economist Keith Chen suggests that your native language may dictate the decisions you take about saving, smoking or eating too much. And Rajini Vaidyanathan reports from Bangalore on the million descendants of emigrants who have flocked back to India.