by triening a la triangulating data we will come up with a more sharply defined, much smaller search area underwater. bear in mind, that the time spent on the surface cover six times more area than any given time than we will be able to do when we go under water. with the batteries likely to fade or fail very shortly, we need to get as much positional data as we can so that we can define a very small search area. bear in mind, with the air france disaster several years ago, it took them 20 days. they had a very good -- they thought they had a good fix and it took the underwater vehicle 20 days to get to the wreckage. yes. >>. [ inaudible ] is it worthwhile to send a manned submarine to have a look at what's down there? have you considered that? >> well, i'm not running the search. we've got -- we've got the australian maritime safety authority running and coordinating the operational search. of course the defense force providing a lot of the assets, along with many other nations. there's a lot of military assets out there at the moment. of course there is one submarine. i might just