>> with dramatic changes in it the aircraft altitude reported intelligence officials say they may have taken heroic action like they did on 9-11. >> there is a struggle with passenger and crew with those carrying out the not in 93. >> they will determine whether flight 370 was taken down by criminal acts. >> fox news aviation analyst and consultant for aviation national assistant defense secretary and holloway is flight instructor. let me start with you on this. in light of the most recent developments looking down on the site of australia many saying it is consistent with the flight path that would have been on auto pilot you believe that terrorism or hijacking is