How long will it be before some countries try to put the latest in brain science to evil use? Consider this study:
The story of SM, a 44-year-old woman whose rare genetic condition has selectively destroyed the brain's twinned set of amygdala, shows the clear downside of a life without fear. . . .
This fearlessness may be fine in the safety of one's living room, but it turns out that SM makes her own horror films in real life. She walks through bad neighborhoods alone at night, approaches shady strangers without guile, and has been repeatedly threatened with death.
Much of the discussion of the abuse of biology has to do with destroying or modifying embryos' genetic code. As we learn more about the brain, surgery might become another option. Would a nation try to create an army full of men who literally are incapable of fear?