>> you wouldn't be thinking about -- >> what we are looking at is potentially very expensive, very regulatory intensive process trying to modify the electrical systems on these aircraft. certainly there is going to have to be a balance struck between unintended consequences of taking control away from pilots and safety benefits that come from ensuring these are really tamper proof. >> let's move on to the cockpit voice recorders and flight data recorders. what are they going to do potential tloi make those more tamper proof? >> as far as getting access to them in flight they're really stored up and away from the cabin. both on boeing and airbus and other manufacturers, aircraft as well. actually tampering with them directly is -- from the physical unit is very unlikely at this point. the 777 which disappeared on march 8 operated by malaysia