Charlotte Smith visits the World Agri-Tech Innovation Summit to hear about the future of farming. She speaks to Brett Begemann from Bayer Crop Science and early-stage agri-tech innovators Angie Curtis from Roboscientific and Veena Adityan from Smartbell. As part of this week's look at the issues surrounding rural services, today we focus on Ceredigion in Wales, where five towns in the county have lost all of their banks. Presented by Charlotte Smith and produced by Beatrice Fenton.