Drones - the terrorist threat that is being ignored

Washington

TWO years ago, you would have had a tough time getting a meeting with a junior staffer in Washington to discuss the subject. A year ago, people had begun furrowing brows. Now, this is Topic A for an entire "community of experts that has emerged inside the federal government", as National Counterterrorism Centre chief Nicholas Rasmussen told a panel of senators on Wednesday. "It's a real problem," he said.

How real? Islamic State fighters in Iraq and Syria, using off-the-shelf aircraft modified to drop grenades, have repeatedly menaced US Special Operations forces. If they can do it in Raqqa, surely someone will try to do it here.