I will post a thread about SABENA on the Nostalgia forum - I am aware of the problems associated with the Belgian government and moving ownership for Group Air France to Swissair (who did fold wings in early 2002).
I just realize a chilling thought: after 2001 attacks tend to come "in lots" while previously they tend to be single action. Four aircraft in 2001, two attacks in London back in 2005, four attacks in Paris, and now two attacks (three explosions) in Brussels.
I don't know how to analyze it but I am concerned that things can turn nasty very fast in a very wide area.