Decompression Event News Today : Breaking News, Live Updates & Top Stories | Vimarsana

To tom and investigators, they can be so slow that it's too slow. people need to know quickly. it's good to know that the airbus didn't have a decompression event or a mechanical system failure. those things need to come out quickly. there's a press to have more transparency in the investigations. there's always going to be this push pull between the media and public's right to know and investigators. >> what do you think? do you want to react? >> miles it's true. it's a balancing act, especially getting information out if there are other aircraft out there that have a defect that needs immedi...

Note no what they call good-bye note. >> he could have been driving to the airport to go to work and gotten a phone call that said it's over, not seeing you anymore, that could have added to the mental situation he would have already been in. >> but we'll have to hear more about this medical condition because it's a persistent condition. he didn't catch a cold and go to the doctor. they're talking about multiple notes over a longer period of time. what kind of persistent chronic condition did he have? >> they're saying now it was not depression. there could be obviously a lot of other causes. ...

Correspondent tom costello from france nbc's claudio lavanga, john cox, former fbi special agent don borelli, michael kay, and frances rivera with more on other cases can of deliberately crashed planes. i want to start with nbc news correspondent tom costello. what stood out to you today about the reveal the transparency of the findings of french investigators about the co-pilot's actions? >> listen i think over the last two days many of us were thinking there must have been a decompression event of some sort. although, i said from the beginning we should not rule out the possibility of a crim...

Thorough and careful analysis to determine who is on that cockpit voice recorder and what are the sounds. because remember, the recording is for two hours. so it's possible they might be hearing the pilots sitting at the gate, they might hear maintenance people in the cockpit, et cetera. every time the flip -- a switch is flipped in the cockpit, that kind of thing, they need to understand what are all those sounds. it's a very thorough audio type of analysis that goes on. this could take weeks, actually. they want to marry that up with the flight data recorder. it's not until you get both piec...

Common explanation for that is that somehow this crew was incapacitated. >> right away? >> incapacitated, you know, so that points to the possibility of decompression of these pilots, every simulator session trained for that emergency, they have quick oxygen masks, they should be able to put them on in five seconds, at that altitude they have 30 seconds of useful consciousness. it's very difficult to explain. we have great authority. this mystery will be solved. >> talk, it happened when they reached their cruising altitude, the highest that they were going to be, and about a minute or two aft...