Kate Adie introduces dispatches from writers and correspondents around the world. This week: Kevin Connolly reports from Bratislava as EU leaders have a perfectly normal get-together - except someone's missing; Sebastian Usher chronicles the war of words between Saudi Arabia and Iran during the Hajj; Jenny Hill visits Hamburg to discover if Mrs Merkel is right to say Germany "can do it" as it tries to absorb its large influx of migrants; Stephanie Hegarty tells the story of shocked shop owners in Lagos and their dramatic tussle with the local authorities; and what Adam Shaw learnt when he met aspiring techies in St Louis.