their pilots. ma lash shaye airlines knows whether they trained their pilots on this. i assume ewas, this this pilot, he has so many hours. and who is investigating what the airline did? a very important clue. presumably they know all this by now. i don't know. it's kind of a mess. >> so, mark in your view, are you in agreement with arthur rosenberg, whom we spoke with earlier, who said this is a game changer, to have this kind of information is a game changer? although we already knew from a malaysian authority, malaysian authorities, they said they believe there was a deliberate action that had taken place. it does this just underscore that? >> with all respect to mr. rosenberg it's irresponsible to suggest it's a game changer or ominous. i think tall does is add to the, this crescendo of speculation. there are air traffic control tapes. air ground tapes, that the