One of the things that was intriguing me about the recent meteorite strikes in Russia was how come there was so much video footage available from inside cars. And not surprisingly some other surveillance researchers were thinking the same thing, and it was Gemma Galdon Clavell who provided the answer: apparently many Russians have dashboard-mounted cameras largely as a form of protection against corrupt cops and officials as well as scammers pretending to be cops and officials and worse.
This article from Radio Free Europe explains at least some of this.
Update: I should warn people not to watch the video links from that piece unless you want to see actual nasty accident footage. It’s not pleasant at all.