one full year later there is no sign of the boeing 777, and no sign of the people on board. imagine what is it like for the families e despite an extensive search in the indian ocean. no sign. the analyst, david soucie, joins us. "malaysia flight 370: why it disappeared and why it is only a matter of time before it happens again." you answered a lot of the information and went back through it all, all the data. at this point, do you have a theory about what happened to the plane? >> i do have a theory, but it's just what i would call the most prominent theory. there's several theories. what i did is used an algorithm i've used for years in aircraft investigations. in that theorem, what we do is take all the validated assumptions, which seem contradictory, but validate and use all of the assumptions and