what has happened here so we can't rule anything out. what is your understanding of where this investigation is going? >> look, piers, i think the more facts we get the kind of crazier and less clear, murky that it seems to get. now we think the plane not only changed direction, that the transponder may have been turned off and that it actually crossed over the country of malaysia on its way back in the wrong direction. now, there are conflicting reports. but you can understand when the director of cia is asked have you absolutely ruled out that this could be terrorism, why he would say no. there are stolen passports, tickets paid for with cash at the same travel agent. i mean, all of this leads them to want to look at things like are there -- and they need time to do it -- are there relations between passengers, other passengers on the plane that we aren't aware of? were there other stolen passports? is there a relationship between any of the passengers and anybody in the cockpit?