Detecting fear
Could be useful in situations mentioned related to law enforcement. If it detects fear in someone pulled over by the police it would be a cue to consider handling the situation differently than if anger or aggression were detected. At least assuming it detects it accurately, which remains to be proven.
It would also be useful to use AGAINST law enforcement - i.e. have a helmet mounted camera facing the officer in addition to the one showing what he sees. That might put a lie to some of the cases where a cop claims he "feared for his life" and that's why he shot an unarmed suspect. If the cops are going to be able to use "evidence" of what the suspect was feeling during an engagement, it is only fair that what a cop feels be entered into evidence as well.
What is authorities and those who blindly support them always say? "If you have nothing to hide, you have nothing to fear". So why would they be against having this used on themselves if it is going to be used by them on others?
Biting the hand that feeds IT
