[galdosdi]

Yeah, you couldn't possibly roll out automatic triggering without also creating laws to uniformize how speed limits are set and data shared about them across the US (I don't refer to taking away agency from the many local jurisdictions that can affect speed limits for the bajillions of stretches of roadway in the country-- just standardizing requirements so that when some tiny little town adjusts the speed limit frfom 25 to 20 on a 2 block stretch of main street, except after 6PM monday to friday, there is a standard way for them to notify a national DOT database electronically and they are required to do that prior to enforcement)

That alone probably makes it a nonstarter in the USA, right?