with jake tapper. the search continue cans for the missing plane without knowing whether or not the ping s from the black boxes have died at this point. many ask why not deploy the underwater drone that can be used to scan the sea floor? the australians says it is a waste of resources to do that. >> until we stop the pinger search, we will not deploy the submersible. is that clear? we will not deploy it. >> joining me now is david kelly, president and ceo of blue fin robotics. the company that manufactures the blue fin 21. this is called an auv which stands for autonomous underwater vehicle. let's call it an underwater drone for clarity of viewers. it can go on a 24-hour mission.