resources, which would be your choice to assist in this search after the bliefin ends its work. >> i think really we've got to look at the technology and what its constraints are. to david's point, you've got to align the technology with the requirement. and if the bluefin can't get down to the depths in the last 5% of the search area, then it makes sense to go onto something else. in terms of the expectation management, the bluefin has only been really deployed for 12 days. the first part of the underwater search was all ping locator and looking for the black boxes and the pings. they come in amplitude and strength. they don't locate where the black boxes are. when they transferred from bluling it out of the -- pulling it out of the water to deploying the bluefin, right at that very