The FBI is investigating the shooting of a U.S. Air Force helicopter as it flew over northern Virginia yesterday. One crew member had a minor injury, according to the FBI and the Air Force. The UH-1N Huey helicopter was forced to make an emergency landing at a nearby airport and a bullet was discovered in the airframe. The helicopter was flying at an altitude of 1,000 feet when it took fire from the ground, said an Air Force spokesperson. The helicopter quickly diverted to the airport to make an emergency landing. The injured pilot was treated at a local hospital and released.