US Firm Turns Cellular Networks Into Silent Drone Detectors

I think this kind of development is really important for people to understand to feel safe despite the risks that drones bring when you think about what a bad actor could do in places where lots of humans gather.

Our modern lives inherently include saturating our environment with radio waves and receiving them with all kinds of devices, this provides a context that public safety monitoring networks can naturally be built upon and the only real fundamental drawback to them is that a bad actor would have to take down the system in order to make it ineffective. In otherwords, they would have to turn the lights out, which would itself be confirmation of something and a benefit to public safety elements rapidly responding to a dangerous situation.

ELI5: Because our modern digital world has devices constantly broadcasting radio waves and never shutting up, there is an "accidental" radar effect that can naturally be leveraged by public safety networks to detect something like a massive swarm of drones. The only counter to that a bad actor has will inherently trip the alarm system of a public safety system if it is designed correctly... because again it is like cutting the lights to a building you want to case, maybe it helps you not be seen technically but also now the building is conspiciously completely dark....