text:  Hello and welcome to NewsHour from the BBC World Service. We're coming to you live from London. I'm James Menendez. And coming up a little later on the programme, we'll be in Marseille in the south of France, where worries over immigration seems to be fuelling support for the far right ahead of Sunday's second round of voting in the election in France. We'll also be hearing in this half hour about how IVF can help white rhinos avoid extinction.