Radar traps. They only snap a picture if someone is going above the speed limit, in a wrong lane (e.g. bus lane) or over a red light.

Any arguments against them are usually analogous to sugar companies opposing a sugar tax because it would lead to poor grammy being unable to afford to sweeten her morning coffee anymore.

Should’ve read the article more closely I guess, it says exactly that very clearly lol

Eh, it’s probably more effective to ban payment services from performing transactions. Doesn’t stop crypto currencies but it would still be 99% effective.