[fotta]

I don't really know why they need this when a lot of these sideshows are advertised on social media in advance.

[prpl]

This (social media harvesting) is really the only option.

They can’t be reactive and produce the required response to address the core issues, because they need lots of cops. Drones help, but even with drones predicting time/location will lead to a better outcome with regard to tracking than being reactive will.