Thanks. I've been curious about human predatory behavior for decades. It's a primitive instinct and living in densely populated communities is a phenomenon that's less than 6,000 years old. We're fish in a kettle for human predators, so we really need to come to grips with managing them. It's should be common sense that people predisposed to self-serving, opportunistic behavior are not qualified for public service. Pre-screening could be as pragmatic and apolitical as SATs and IQ tests are in academics. I hope one day it will be. Getting the word out about the progress of hard science diagnosis will help dispel concerns about bias and potentially abusive "witch hunts".