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Horizon

2011-2012

Episode 5: Are You Good or Evil?

Duration: 1 hour

on BBC Four

Horizon meets researchers studying psychopathic killers to try to determine what makes people good or evil. One such scientist believes he has found the 'moral molecule'. Show more

BBC Four

About BBC Four

BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.