. >> david kidwell is an investigative reporter for chicago tribune. he's been following troubled history of chicago's red light camera program. since 2003, the at this time's nearly 400 red light cameras have brought in $500 million in traffic fines, money the city desperately needs. >> the city of chicago's bond rating is darn near junk rating right now. this city is in an enormous financial crisis. ending the red light camera program only creates more problems for the government in the city of chicago in terms of making up very, very critical shortfall in the amount of money they have to run the city. >> and kidwell's investigation also exposed other issues at intersections in chicago with red light cameras. one of the biggest problems is that the yellow light intervals are too short. federal guidelines say yellow lights should last at least 3.2 seconds. the city of chicago's department of transportation says its yellow lights are set at 3 seconds. but kidwell uncovered evidence that many of the red light camera intersections had so-called yellow li