The search for MH370 will end next tuesday with it’s fate no closer to resolution. There is however one last terrible lesson that we can glean from this tragedy. Put simply it is that when we operate a two man crew behind a terrorist proof door there is a real possibility that madness is check-riding the flight. Now we don’t know what happened onboard MH370 but we do know that the aircraft was flown deliberately to some point in the Indian ocean by one or both of the aircrew, in the case of Germanwings disaster we know that it took only one of the crew so my guess is that it was murder rather than suicide pact for MH370. And as long as we fly two man crews behind armoured doors we need to realise that madness will continue to ride quietly alongside the jump seat.