[politics] Allen | Top agency officials have testified extensively before Congress about their concern that commercial drones could collide with manned aircraft or injure people on the ground.
[politics] Allen says, "so they've banned them"
[politics] Allen says, "but noncommercial drones are allowed, because it's impossible for them to collide with aircraft"
[politics] Fang says, "well, with the commercial drones, you also have to contend with the invisible hand"