Explosion 'Unlikely' In Flight 447's Final Moments

http://video.news.sky.com/skynews/video/ An official from a French pilots' union has told Sky News he's recommended his members do not fly the model of Airbus involved in the Air France disaster until the speed sensors are changed. A nuclear submarine has started an underwater search for the black boxes to try and establish what caused the crash. Sky's Alistair Bunkall reports.