Whatever happened to his notebooks? Jeremy Bowen, charting the demise of the Gaddafi regime in Libya, wonders why his precious notebooks keep going missing. Mishal Husain travels though five countries finding out about the role Twitter and Facebook have played in the Arab Spring. Thousands of Zimbabwean children have been making a long, risky and illegal journey south in search of a place in a South African schoolroom; Mukul Devichand's been meeting some of them. Lesley Curwen's been to the US to find out how families are getting by during the economic downturn. And in Ireland, Fergal Keane sees signs of hope and optimism after the worst banking crisis and recession in the country's history.