when we aired the story in november, i spoke with angie schmidt. an editor at street blog u.s.a. which follows news. angie told me it leads to an increase in rear light accidents. it reduces tee bone. >> if you look at loss of lies injuries, those t-bone, not the rear end fender benders, and the vast majority of research says he is are effective in preventing those incidents. >> what you heard in the story was criticism from people in chicago, coming off of a parking meter scandal. that it seems the city is desperate for revenue they'll outsource. when new jersey outsourced the red light camera, it was called credit negative. the heart of the issue is not the stuff you study, which is whether or not the red light camera is safer, but the way chicago handled this. >> i agree. there has been problems in chicago and other communities. they are very - a lot of people feel passionate about this issue. one thing they should do. near where i live, they use speed cameras, but only in school zones, and they are used for child safety programs. that's a practice, keep the money dedicated to

i spoke with angie schmidt, angie told me that while red light cameras may lead to an increase in rear end accidents they actually reduce the number of more serious t bone collisions. >> if you look at the serious collisions that lead to loss of life and serious injuries, those are red light running collisions, t bone type high speed collections not those rear end fender benders, and scholars say this is effective in preventing these types of incidents. >> what you heard, chicago is just coming off of this parking meter scandal if you will where it seems the city is so desperate for revenue that it will outsource the issue to people. moody's called credit negative for local treasuries. the heart of issue is not necessarily the stuff you study which is whether or not the red light camera is safer for the intersection but the ham-fisted way in which chicago has once again handled this. >> i agree. it does seem there has been some huge problems in chicago and there have been problems in other communities as well. one thing we recommend, communities need to be careful how they roll these o