Boston HeraldApril 6, 2017 A pair of tethered drones built by a local company will hover over the Boston Marathon starting line in Hopkinton for the first time as part of a high-tech security plan targeting low-tech terror attacks. Built by Danvers-based CyPhy Works, the Persistent Aerial Reconnaissance and Communications drones, or PARC for short, … Continue reading Authorities to use drones to surveil Boston Marathon