more about the vehicles. don't know how they will do that. >> geoffrey, everybody involved in the underwater search, we're hearing they're confident they're in the right location. are you hearing that from your sources, as well? and do you think there is some type of information they're working on that has not been publicly released? >> indeed, anderson, i mean, we have to sort of take ourselves back about a week ago. they had four strong pings. they had two fading pings. this was the spot where the inmarsat final hand shake was recorded. so the electronic, if you like, footprint of this is this location. and i think -- if my memory serves me correctly, and david can verify this, when they did all the re-calculations of air france 447 and put the bluefin-21 in there, i think it was about a week, maybe six days where it was located. so i mean, we're only day three,