There are scientists who claim psychopathy can be detected on brain scans. And since 1-4% of the population are estimated to be psychopaths (most of which end

There are scientists who claim psychopathy can be detected on brain scans. And since 1-4% of the population are estimated to be psychopaths (most of which end up in prison, and the rest works their way up in society), this could well be a very impactful avenue of further research.