8501. i just want to give you some detail as they came across this area the speculation, whether it was pings from the black boxes. that has been ruled out. as of this morning it was the side sonar scan that picked up the ping. the echo sound basically gives a 3-d image of the debris on the ocean floor. several hours later that data processed, the chief authorized a remote camera to enter into the water and survey the scene. once those images were confirmed he gave authorization for divers to get into the water. and that is when they confirmed that the tail of this plane was there. and those are the images that we have been showing our viewers now for the last few hours.