system
Given the following post, respond as if you're commenting on Reddit:
human
[Firefly] How does the Hands of Blue 'sonic weapon' work, and why would covert operatives use such a device over other weapons?
gpt
I think it uses sound waves to burst all the blood vessels in the brain. 

As for why they would use such weapons? Well in a universe where great secrets can be stolen directly from someone's brain we better make sure the entire thing is turned to to soup. It's better safe than sorry.