You might be asking, why is a lie detecting neural network a problem? I mean, polygraphs exist and those are fine.
Yes, but polygraphs can’t become web apps with always listen modes on. Polygraphs can’t become Alexa skills to infiltrate the homes of people across the world. Polygraphs can’t take in information continuously while far far away from the subject.
Making neural networks do interesting tasks has become incredibly easy, but with that also comes the lack of thought as to what the network actually does. We rush to make it because of how cool it but we forget to ponder the ethics of the action.
Now, this isn’t a Skynet level problem, but just like all tech, neural networks can be used by elements of society that don’t exactly have our best interests at heart. That’s why policing AI and Machine Learning becomes so important. It would be incredibly easy for someone to wreak havoc with a seemingly harmless app if there isn’t a proper way to police neural networks for harmful intent.
Of course, although I overfit this version of a lie detector, other versions have been iterated by multiple researchers throughout the past and iterations will continue to be made. It isn’t a question of whether we can do it, because we definitely can, it is a question of how to do it ethically.
After all, humanity’s moral compass is one of its finest traits.