 So far, the FAA has not classified the incident as a close call, though, as we say, they are investigating. Let's bring in CBS News transportation safety analyst and former chair of the NTSB, a good friend of the network, Robert Sumwalt. Bob, always great to see you. That video, it's difficult to see, but these aircraft appear to almost cross each other over this runway. Can you break down for us how that can happen?