Is evil rational? If it is, then how can we depend on reason alone to make a better world? Best-selling author Dennis Prager has a challenging answer.
What makes us good or evil? It's a simple but deeply unsettling question. One that scientists are now starting to answer. Horizon meets the researchers who have studied some of the most terrifying people behind bars - psychopathic killers. But there was a shock in store for one of these scientists, Professor Jim Fallon, when he discovered that he had the profile of a psychopath. And the reason he didn't turn out to be a killer holds important lessons for all of us. We meet the scientist who believes he has found the moral molecule and the man who is using this new understanding to rewrite our ideas of crime and punishment.
This is the poignant true story of twin sisters from China, found as babies in a cardboard box in 2003 and adopted by two separate sets of parents - one from California, the other from a remote fishing village in Norway. Neither of the adoptive parents were told their daughters were twins, but a chance sighting at the orphanage enabled them to keep in touch, until a DNA test proved their hunch had been right.
It's perfectly human to grapple with questions, like 'Where do we come from?' and 'How do I live a life of meaning?' These existential questions are central to the five major world religions -- and that's not all that connects these faiths. John Bellaimey explains the intertwined histories and cultures of Hinduism, Judaism, Buddhism, Christianity and Islam.
In her final journey of the series, Kate Humble travels deep into the southern Gobi Desert in Mongolia to live with an extended family of cashmere goat and yak herders. Here in the seemingly barren wastes of Asia's largest desert, nomads have lived cheek by jowl with nature for centuries. Chimid, the 78-year-old mother of ten, welcomes Kate into her large family. With their herds of goats, sheep, horses and yaks, this family are successful nomads. They move four times a year with the seasons across the Gobi, to sheltered winter pastures and mountaintop summer grazing.