or perhaps more turn and at the same time the transponder was turned off or at least the transponder return disappeared, that would suggest to me a higher probability that someone unauthorized had gained control of that airplane. >> that obviously is still a matter of conjecture. there are conflicting reports from various malaysian government officials. that is part of the problem here. the information flow has not been great. erol south ers, you're associate director of the -- what is your assessment of where this investigation is right now? >> well, as mr. brennan said this morning, we cannot rule out terrorism at this point. and we will follow terrorism to ground until we know something different. you've got 239 people on this flight. 239 people that we have to vet and make sure nothing nefarious