Do psychopaths have a choice?

Scientists Disrupt Moral Reasoning With Magnets To The Skull – Brains – io9

Want to make somebody lose her belief that harming somebody else is wrong? All you have to do is hold a special magnet up to her head in the right place.

Using a technique called transcranial magnetic stimulation – in which magnets are used to disrupt neural activity in specific parts of the brain – scientists managed to “turn off” people’s moral centers. [io9]