those your headlines. as we mentioned, crews are looking for flight 370 have deployed the underwater vehicle, they called the bluefin 21. it s now searching for plane wreckage. in an area officials have classified as new to man. what does this mean and how are they going to do to it? joining me on the map is david gallon low, co-leader of the search for air france 447. and director at oceanographic institution. david, great to see you. thank you, kate. let s talk about the bluefin 21. this is a representation of what it would be what it s going to be doing under water. it takes a minimum of 24 hours to do each of its missions. that s right. what exactly is it doing this time. it s obviously going faster than it will in realtime. we ll make it a little faster. it s going to take a couple hours to get to the bottom. it s all about power. so it s just sinking. driftinging down. maybe a little bit of rotation with propellers. when it gets to the bottom, it