Radio 4’s PM wheels on various guests about possible spending cuts. Yesterday it was Mel Stride MP and Paul Johnson of the IFS. Today it was Paul Scully, Minister for local govt. “Where there is any fat,” asks Evan Davis, “Police, health, schools, prisons, defence …?” Traffic control never figures. Yet it hoovers up tens of billions annually, fails to keep us safe, and acts to our detriment. Time and again it avoids the spotlight. TfL managers must be laughing all the way to their pension pots.