In 2013, a small quadcopter flew close to German Chancellor Angela Merkel who was attending an outdoor political meeting. A year later an inebriated federal agent crashed his Phantom in the White House perimeter. Fortunately, the drone did not damage Michelle Obama's vegetable garden, but following this event DJI implemented the no-fly zone feature on its entry-level drones. However, this measure is not completely effective to prevent rogue flights and authorities are looking for solutions to counter drones from flying in restricted areas. Let's review the current anti-drone solutions and challenges associated with neutralizing a small UAVs.
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