I was in China recently, and the number of surveillance cameras there is bewildering. I suppose when you buy this brand you benefit from cutting edge technology funded by the investment the state has made...

Fascinatingly, China has a mix of public - private infrastructure. E.g. wireless payments are provided by WeChat and AliPay (although in the West it's not much different, it's Visa/MasterCard), and I guess in the US, Amazon is the private side, and the cops are the public side.