Chicago, I L—Surveillance cameras will be doubled for Chicago’s public transportation system. That was today’s announcement from city officials as a treatment for the rash of cell phone and IPod robberies. The wonderful thing about surveillance cameras is not their effectiveness to reduce crime but the political contributions generated by the contractors providing them do great things for re-election campaigns. Cameras are really not that helpful. There are thousands of images of dangerous criminals that never get identified. Video recordings are worthless in and of themselves. Most people are unaware that a picture or video in and off itself is hearsay and therefore inadmissible as courtroom evidence without an, eyewitness and or DNA evidence. No jury will never be given the task to determine if the subject in the video is the suspect charged with a crime absent the testimony of a human at the scene. One by one traffic photo Robocams are being removed from American streets as the c...