Cultural Chemistry (Part 3 of 3): Colombia - the plant that steals your free will?

You've seen it in suburban Australian gardens with its bright, pendulous flowers in full bloom. But in Colombia, Angel's Trumpet has a dark side. It's used to rob people by robbing them of their memory, and allegedly, their free will. For All in the Mind, clinical psychologist Dr Vaughan Bell goes in search of the truth about the drug Burundanga, and Brugmansia, a popular plant with a complex personality.