More than one million drones are expected to be sold in the United States this year, compared to 430,000 in 2014, according to the Consumer Electronics Association and the Federal Aviation Administration (FAA) said last week that US pilots have reported more than 650 drone sightings so far this year compared to 238 over the whole of 2014.
This surge in drone activity has raised concerns that one could hit a commercial aircraft during landing or take-off, or be used as a weapon in a deliberate attack, prompting the authorities to investigate ways to track and disable drones, sources familiar with the matter said.
"We can't shoot it out of the sky. We have to come up with something that's kind of basic technology so that if something happens, the drone or device will just go right back to the operators. It won't crash," one of the sources said.
Police want to be able to take control of a drone, steer it...