If nothing else, this tragedy highlights what every flightcrew member has been saying to each other since the knee-jerk secuirty reactions came in post 9/11; that if one of us wanted to crash our aircraft, we could do so with little difficulty.
This exposes the security farce - no yoghurts, bottled drinks, Swiss Army knives etc - that we have been forced to accept fro the past 14 years.
As a previous poster said; we should be part of the aviation security solution. The politically-driven authorities have never accepted this and this awful incident has blown a hole in their logic with regard to flightcrew and security.