In-town Chicago mail system worst in U.S. CHICAGO, March 11 (UPI) -- A report that Chicago's in-town overnight mail delivery is the nation's worst appears indicative of the city's overall problem with postal satisfaction. The Chicago Sun-Times said that in addition to Chicago's struggles with in-town mail delivery, the Illinois metropolis has been failing in nearly every postal area related to customer satisfaction. While 92 percent remains the average quality rating of U.S postal delivery, only 77 percent of Chicago residents rated their mail services "excellent, very good or good." In response to instances of mail fraud and delivery problems,...