Echodyne announced that its VP of Product, William (Bill) Graves, Jr, will lead a session titled Countering Drones A Comprehensive Review at the APSA Public Safety Drone Expo 2019 on October 10th. The event is being held in Columbus, OH. APSA is a non-profit, educational organization that supports and encourages the use of aircraft in public safety. Public safety personnel are one of the largest groups of drone users in the United States, flying thousands of public missions.