wiring problems: when McDouglas/Boeing informed officially about those wiring-problems about 18 months ago, Swissair informed that they had done the (from Boeing recommended) adjustements already 3 months before. And they handed over that evidence (the maintenance-protocols which were confiscated 3 hours after the accident by the Swiss police) to the Canadian-investigators.
Let's not speculate; hopefully the black-boxes will help to find out the tragic-reason(s), and hopefully this will help to make adjustements and in the long-term make flying even safer.