Unmanned aircraft have higher accident rates than regular aircraft . The FAA urges caution in expanding the use of pilotless planes in the United States . It is the FAA 's responsibility to ensure the safety of other planes in the sky as well as people on the ground , she said . Comment:
Unmanned aircraft have higher accident rates than regular aircraft . The FAA urges caution in expanding the use of pilotless planes in the United States . Comment: