The place where many Christians engage with atheists about belief is online. But why do both sides turn up to engage in the conversation, and what is the fruit?

Todd Pitner and Richard Morgan are adult converts to Christianity who often engage in apologetics debate online. They meet face to face with Paul Baird - one of the many atheists they debate online.

They discuss the different style, tactics and motives of those who participate and whether atheists or Christians are prepared to change their mind