Mayor Rahm Emanuel got thirty minutes of airtime to answer a series of softball questions on  dozens of Chicago radio stations last night. The first ever “radio roadblock” hosted by former news anchor Bill Kurtis was simulcast across 47 radio stations commercial-free during the 6:00 p.m. drive-time half hour. Kurtis, who has recently become better known for light documentaries on the A&E cable channel than his 1970’s hard-hitting newsman days, posed seven easy questions from Chicago-area residents, and sometimes lent a sympathetic ear to the Mayor during the interview.