Learning! A different kind of facial recognition software.
It seems weird to most of us to think that some people straight-up don't recognize basic facial expressions or social cues, but the fact is that a good number of people who engage in antisocial or violent behaviour from a young age seem to lack that ability.
So here's a simple solution: train young offenders to recognize fear, sadness, and anger.
It works! In the UK they developed a computer program that trains young offenders to recognize these key emotions (and a few more). The result? Those who received the training were less likely to reoffend, and when they did, it was less likely to be a violent crime (opting, for example, for petty theft instead of aggression).
So promising for the future treatment of aggressive behaviour!