May I move this thread on to a related aspect, that has been mentioned by some in the thread?
It is one that has been raised before: the quantity of hand luggage. Rather than go into the problem - which we all know - what is it going to take to make carriers enfore their own rules?
For what it's worth - I am of the opinion that only concerted international action from the regulatory authorites would have even a remote chance of working.
Of course, if we can prove that a mega-death crash was caused by excessive hand baggage ...