NEW YORK (Reuters) - New York police will begin asking city pharmacies to stock decoy bottles fitted with GPS devices among powerful painkillers like Oxycontin and oxycodone in the latest bid to combat gunpoint robberies of drug stores. Police hope that in the event of a robbery, the 'bait bottles', which will be labeled as painkillers but filled with harmless placebos, will lead them back to large stocks of stolen prescription drugs. Last year, federal and New York Police Department investigators seized 9,000 painkillers being sold at an open-air drug market in northern Manhattan. ...