mary's point, if you find one, why wouldn't you have found others? >> well, and i'm not -- look at the report and they said that they confirmed that the copi co-pilots's cellphone did connect. they didn't say others didn't connect. they way reported it wasn't clear, it wasn't complete. amazing. >> you can't connect up high. >> i've heard as much as 18,000 feet. i have a friend who flies that area a lot and one time he left his own and received text message about 18,000 feet in that same area. so it's possible that it did connect at a little bit higher altitude but certainly not 35,000 feet. >> what would have to be happening? i don't like speculation but just to test the idea of what you would need a cellphone when you have all of this other communications equipment, how disastrous a scenario would you have to be experiencing, mary, that that was your only recourse? >> well, it would have to be a very serious disaster.