which may indicate some type of catastrophic failure, we don't know it would have been intentionally turned off. there would be no reason to do that. that's surprising. when we have cell phones where hundreds of millions of people can be tracked in the another, where we need to figure out where somebody was, we can do that, we can't follow a 777 around the world is unimaginable to me. the pain and agony these families are facing should have been avoided. >> keith, to his point, this is something that i've come back to. if i'm up to no good, acting with sinister motivation aboard that flight, why am i wasting time with acars, i want that transponder turned off. who cares if there's information transmitted from acars, that's not going to tip off a government as to what's in progress. >> that's one of the mysteries here, michael. i think what's important and what he's referring to is that the capability exists on orbit. we heard about global star,