https://spirecomm.com/wp-content/uploads/2018/03/defensenews.png45125Beth Boyterhttps://spirecommunications.com/wp-content/uploads/2017/12/SpireLogo-300x138.pngBeth Boyter2021-10-04 18:36:382021-10-06 18:37:56Swarm Grammar: DARPA to Test Whether Single User Can Control 200 Drones