Vietnam-era workhorse has cost more than $1M to maintain
                                
                                
                                    (Newser) -
                                    Looking a gift chopper in the blades might not be a bad idea, if the experience of the Newark Police Department is anything to go by. The department accepted a 42-year-old Vietnam-era helicopter free from the military in 2005, and a second in 2007 for spare parts, but maintaining and...