cazatou
I am in full agreement with your ps.
The first thing I did 11+ years ago was to raise my concern on the possibility of sabotage by way of navigation aids with the authorities - the haste (before inquiries complete, etc) was to allow them the chance of gathering evidence before it was lost. Hopefully, with more details, something can be done in the near future.
By the way, with all your experience in aviation (and this goes for other contributors to this thread), how come there has not been a post acknowledging the existence of the PRC112 system and any discussion about it? Are you familiar with the concept of the sin of omission?