@chillie,
what do you want to say? That other solutions(raytheon,selecta,indra) work without problem? have you been informed about completely system failure in one European system,recently? They lost: radar picture both primary and secondary,plus all voice communication devices and so on,with some 150+ planes on frequency. Only private mobile telephone worked. And their system is not Thales.
So, every particular system is vulnerable. It is just question of time and place.
from my point of view Thales is good solution but people sometimes are not ready to accept and learn enough. Of course,management likes money i.e. it is better to give yourself bonus rather than to invest into operational system.
That is not Thales failure.