top three drone manufacturers The Drone Makers And Their Friends In Washington explains The Drone Makers And Their Friends In Washington KPBS report are paid any of its competitors The Drone Makers And Their Friends In Washington top three drone manufacturers top three drone manufacturers at least $12 billion $2.3 million at least $12 billion $2.3 million are paid report Unmanned Systems Caucus millions Unmanned Systems Caucus The Drone Makers And Their Friends In Washington politically influential The Drone Makers and Their Friends In Washington reports The Drone Makers And Their Friends In Washington drone caucus