What IS evil, really?

If you’ve ever had an evil thought - or even a murder fantasy - you’re not alone. Julia Shaw, the author of “Evil: The Science Behind Humanity’s Dark Side” explains that most people have devilish notions sometimes. Shaw, a psychologist and research associate at University College London, says we all have the capacity for cruel deeds. She suggests that acknowledging our darker desires may in fact help us deconstruct and better understand the whole concept of evil. This understanding, Shaw believes, can make us think more broadly about criminality, and lead to a rethinking of our justice system.