The lady driver of this White Freelander was being overtaken in a safe manor. She decided to take insult to being overtaken so accelerated hard to prevent the other driver getting back in lane. After this dangerous and irresponsible move she began to tailgate at 60 mph three car lengths behind the car that overtook her. Tailgating was not enough though; she decided to film the car in front and followed it whilst filming with one hand.
Her actions were just dangerous and moronic and the only thing the video she took show is her breaking the law.
You need to retake your driving test.