he thinks they have the necessary information to find the wreckage and black box. if this doesn't work out f. the estimates, tweaking of the data, revisions and fine tuning turn out not to be correct, we are in for a long, difficult search way beyond anything we are talking about now. >> strange. rob, if i could give you the power to take over the search tomorrow, would you do anything different? >> no, i wouldn't. i would focus on the pingers. that's the best hope we have got but i would be consider running a search pattern right down that arc, that aircraft track, and searching that 360-mile by 30-mile box. that would take around 60 days. >> 60 days. my goodness. we are hoping against hope for any sort of hint of optimism in the search for the plane. rob, thank you so much. andy, appreciate your reporting, as well with. that's all for us tonight.