but high vertical dissent rate. in other words it virtually is going straight down at a veried flight angle and very low air speed. but a very high rate of dissent. that would produce a more condensed debris field. >> excellent. thank you so much anthony roman for your expertise on this. we would like to bring you in and get more of your expert opinion. appreciate it. now with us on the phone mikey kay a former correspondent and pilot of jets and helicopters. from the facts you've been able to take in this morning, what is your take? >> caller: good morning. the investigation such as this concentrate on three main pillars. it's the where, what and the why. at the moment what investigation authorities search and rescue authorities are trying to do -- what is important about this