We’re used to hearing about the power of artificial intelligence to spread misinformation – but could it also be a tool for persuading people of the truth? Ian Sample speaks to Thomas Costello, an assistant professor of psychology at American University, who has published a study exploring the potential for AI chatbots to lead people away from conspiracy beliefs. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>