"Obama sounds like a commander delivering a speech to soldiers and Romney sounds like some office drone giving a PowerPoint presentation, " said one user.

WSJ: Chinese Watch Debate Online, Take to Sina Weibo With Commentary

Instead he has laboured in the shadows in the White House, hugely influential, as a president who picked up a Nobel Peace Prize on pretty much his first day in office has expanded the programme of drone-killing with an aggression that has surprised friends and enemies alike.

BBC: Drones at the forefront of the Brennan hearing

In 2012 the FAA established the Unmanned Aircraft Systems Integration Office to figure out how to certify and regulate drone traffic in U.S. airspace.

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