let me go back to arnold barnett.cally again this is purely based on what has happened in the past. i get that. of all the scenarios, pilot suicide, commandeering, hijacking, mechanical failure, totally bizarre, a meteorite hitting it, who knows? of all these theories, what is statistically from everything that we can see from analysis, the most likely? >> that's a very difficult question to answer. because any numbers i would give you or assessments are themselves after all is said and done opinions. i would say that the facts that have emerged now seem to me to make it implausible that this was an accident. that it seems more plausible that something deliberate happened, whether it was the pilots or those who forced themselves on the pilots. we can look in the past and see examples of both. i would tend -- if you wanted me to make a guess, and it's really just a guess, i would guess that the pilots were under duress and they were forced into actions that may ultimately have led to the destruction of the plane. >> ce