This time, as the NHS prepares to start offering a more accurate blood test for Down's Syndrome to expectant parents in England, Nina Hossain is in Denmark, where the same test has been available for a year. Nina explores a unique partnership between hospitals and families, which aims to provide more information about raising a child with Down's. Nearly thirty years after the city's last serious earthquake Geraint Vincent hears how San Franciscans are preparing for the next seismic shock. And Peter Smith travels to Berlin to explore 'Free Body Culture' and other intriguing aspects of the German phenomenon of 'Ostalgie' - the sentimental nostalgia for Communist East Germany.