New Topic: Cameras At Stop Lights

Today after work i went and got some coffee with my aunt and on the way home I saw a sign that said that there were cameras at the stop lights now. I have heard of this in Chicago and I guess I can kind of understand them because the city is so busy. The boxes in the city are on the light posts and they have a blue light coming from the top of them just like a cop car does. But I know they have one on Kirchoff right by the bank and another one on Golf and Plum Grove or Meacham or whatever it is. The one on Kirchoff is on a big gray pole and has a big gray box on top of it. I don't really know if they are exactly necessary. I heard they are being used to ticket people who run red lights but I never really thought that running red lights was that big of an issue. I haven't heard of any real serious accident from someone running a red light but I know there are probably some. To me i don't think we need to have them unless its a lot bigger problem than I know. What do you guys think... do we need to have cameras at stop lights?