New developments in a case of high-speed road rage.
Officials tell CNN an undercover New York City police officer was on the scene when a pack of bikers chased down and beat up a SUV driver on Sunday.
Police are still investigating the violent confrontation caught on tape, and are also questioning another biker on the scene.
Susan Candiotti is OutFront.
The rough and tumble big bad biker enforcers swanging their stuff.
Are these the terrorists that the US has hard beefed itself up for with NSA and the others?