Dating a chatbot

What is it like to have an AI boyfriend? We hear about women in China who prefer to date a chatbot over a real person. How can tech be used to unlock the potential of crops - and help with food shortages? And we meet the fashion designer who hopes to fool facial recognition technology with her clothes.Presenter: Shiona McCallum Producers: Tom Quinn and Imran Rahman-Jones(Image: A woman looking at her phone which has hearts coming out of it. Credit: Getty Images)