After hearing about the new threat, I now have a use for the multilinked panic button system I've been working on. With a few simple modifications, I can make these into a system of being able to patrol cities more efficiently. With a push of a button, the rest of the people patrolling a city could hear a unique tone, letting them know who's spotted the current threat, and with the push of another button, it would let them know if that person needs some help. The signal is virtually untraceable, and the device is about the size of a flash drive. The only downfall of this is that you've got to make sure not to lose it or it might fall into the wrong hands.
If anyone feels like this is useful, just let me know. I can make these things fairly quickly, and by the end of the night, I'll have about fifteen of them done.