cockpit. maybe a tire fire so the pilots put on their masks, they're pulling circuit breakers, i guess, to try to isolate where this electrical fire is coming from which then cascades, shuts down the transponder and the radios. go. what do you think of that? >> well, i think that's a little bit far fetched. certainly based on the last radio communication that was received, it didn't seem like they were in any sort of distress. when you put on the oxygen mask and then attempt to talk on the radio, there's a significant change in the audio quality because you're talking through a mask rather than through the air to the microphone. so while they would normally attempt to communicate with the outside world if that were the case, it doesn't seem like there was any attempt to make a communication that way. >> mary, you disagree? >> well, no, i don't disagree. i think there are so many different scenarios. over the years in different