http://www.knoxnews.com/news/2011/nov/11/red-light-cam-vendor-sues-knoxville/ http://www.knoxnews.com/news/2011/nov/11/red-light-cam-vendo... TL;DR - One parti

http://www.knoxnews.com/news/2011/nov/11/red-light-cam-vendor-sues-knoxville/ http://www.knoxnews.com/news/2011/nov/11/red-light-cam-vendo... TL;DR - One particular city stopped issuing violations when the camera caught someone turning right on red with a 'rolling stop' because those don't really affect accident rate, revenue drops by 90%, the maker of the cameras sues the city. In other words, abject evidence that the makers and marketers of these cameras only care about revenue.