Two senior lawmakers sent a letter to the Federal Aviation Administration demanding information on privacy. The FAA is required to permit the use of unmanned aerial vehicles by a wide range of organizations. The law requires the FAA to make rules pertaining to the safe operation of private, commercial and government drones over U.S. airspace. The lawmakers also want to know if the public will be notified when the drones will be used, by whom and for what purpose, what data is collected and how it will be collected.”]