The woman who feels no pain

Scientists at University College London have discovered why a genetic mutation means that Jo Cameron, a 75-year-old woman, feels no pain. She also experiences low amounts of anxiety and fear, and has the ability to heal wounds more effectively. Also on the programme: this year's hosts of the UN climate change talks defend their appointment of an oil boss as the chairman; and we hear from this year's International Booker Prize winner. (Image: Scottish woman Jo Cameron, 75, who feels no pain. Credit: Jo Cameron)