has reached out to help in this search. you were instrumental in mh370. good to have you back with us. let's talk about this area to brings you up to date the red area you're see sgt original search area. about the size of the state of georgia to give us an idea of how big the area is and then we know this is the area in yellow where the debris was first spotted. what does that tell you when you look at that area and talk to us about the conditions of what this is like out there? >> well obviously where they find the debris may not be exactly where the plane went down. they're going to have to find more debris as much as they can and develop a search pattern for where the plane possibly is. >> in terms of a search pattern. let's look in here. you've got this technology we just had a great look with gary tuchman in his piece. a couple of tools that you've used in the past. you've talked about with us here.