Unpiloted aircraft unsafe for domestic use.

• Author: Erwin, Sandra I.
• Position: WASHINGTON PULSE: NEWS FROM INSIDE THE BELTWAY

It could be another decade before unmanned aircraft are safe enough to fly in U.S. national airspace, concluded a recent study by the Government Accountability Office. The agency confirmed what has been said by numerous experts--that unmanned aircraft don't have adequate sensors to prevent aerial collisions. "No technology has been identified as a suitable substitute for a person on board the aircraft in seeing and avoiding other aircraft," said GAO. Additionally, the aircraft's communications and control links are vulnerable to radio interference.

At a...