that was the decision, the hard decision that angus huston has to make 12 days ago.>> 447 at least there was something, right, that we knew about. this flight is a complete mystery. we know nothing. all the elts, none of the alerts went off. nothing happened. pretty much wasn't track iing o radar. as a former member of the military if you were heading this up, what would be your first step in rejiggering the search option? >> a number of search options going on. subsurface ping locater. that was in unison with with with the air search. now the air search is as key angus huston's chief priorities is to try to link something to mh 370 and its resting place in that area. the priority, the reason it's priority number one is to give the families and the loved ones that closure. that's the most important thing at the moment. the what and the why will take many, many years. getting that linkage of debris. that's why the air search is so important. >> you would continue on with the air search if you were leading the search now? you would continue on with that? would you chan

. >> i think this was a calm, supreme measure by angus huston.ber one, he confirmed that the ping from the chinese news agency wasn't verified. i think that's very important, just to reduce everyone's expectations. he then said that he was actually talking to the rcc in china, the rescue coordination center in china. i think that's important because we've been talking about the importance of establishing that communication with china, of bringing in that was in. he then said and i think it was aimed towards the families that all credible leads will be followed up and it reassures the families they will not gloss over this. and the important of this about redeploying those assets, i think that's what he's doing. and that to me place as real importance of just how significant this ping is. >> mr. houston emphasized caution because they haven't verified that. of course he is taking into account the families that have been just waiting and waiting for anything. and they certainly don't want to mislead with this promising lead that they have. of cours