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Citigroup has settled an investigation into risky sub-prime mortgages. We consider the implications for other banks. We're at Farnborough Air Show, asking why Lockheed Martin's F35 fighter plane has not turned up at the show as had been expected. Also in the programme, as Samsung suspends work with a supplier in China that was found to be employing children, we ask how much control major multinationals should have over the working conditions at their supplier's factories. Plus, Lucy Kellaway of the Financial Times asks whether customer service people are becoming a bit too friendly.