News Mosquito-sized drone is designed for Chinese spy missions — military robotics lab reveals incredibly tiny bionic flying robots

Whenever something the Chinese invents like this, it never fails that there's some kind of nefarious application for something like this. It doesn't have some kind of camera or microphone to spy on you so I don't know what the hoopla is all about.
 
Whenever something the Chinese invents like this, it never fails that there's some kind of nefarious application for something like this. It doesn't have some kind of camera or microphone to spy on you so I don't know what the hoopla is all about.
If it has no camera or recording, then what might it be used for?

Just flying around isn't much good.