That's what this sounds like, biomarkers for actions? I don't think so. Who's resposible for evaluating what actions are considered violent under what conditions? Where are they going to get their dna samples from, prisons most likely that are filled with people who are 400% more likely to be in jail becasue of their race and the way our society treats them, what a great test basis. Please stop this utter ridiculous nonsense, it sucks that your kid got killed in America but this is no way to cope with it.