Motor vehicle thefts up, arrests down in Chicago... Nearly 30,000 cars were taken from their owners in Chicago last year, yet police efforts to catch the bandits reached record lows... The number of vehicle thefts reported last year is the highest in 23 years..Not only did the arrest rate for car theft fall to 2.6%, but data collected through the Chicago Data Portal showed that it was the lowest level since the city started tracking crime online in 2001. The Chicago Police Department did not immediately respond to a request for comment, but the 29,063 motor vehicle thefts reported in...