The thing that really bothers me about this entire issue is that fact that Airbus expect to have validated update software soon. Presumably the flawed software was validated, but clearly the validation process itself needs to be severely questioned otherwise one has to ask what other forseeable risks are present. I accep that unforseeable risks can not be eliminated, but surely to God wind shear is forseeable, and if the incident (accident) was recreated in the SIM, how on earth was this missed in software validation! There are very good International Standards on risk analysis and management in many fields - were (are) these not used?