officials insist the plane that slammed into the french alps was in perfect technical condition before the crash. cnn learned that fbi agents reviewing the passenger list so far haven t found any criminal links. investigators studying data from one of the black boxes and other early clues trying to solve the miss trif mystery of why the jet nosedived. our correspondents and analysts are standing by. first, let s go to our aviation correspondent rene marsh. reporter: a break through for investigators who have retrieved flight 9525 s cockpit voice recorder. it could be only a matter of hours before they get their first listen at the pilots final words. this is the strongest clue investigators have in their hands. the exterior of the flight 9525 s cockpit voice reporter looked damaged. french authorities revealed today, they have had some