chrisN
"Rustle, my comment about maybe having to stop squawking in some areas was based on what happens now (allegedly) in Holland, as I quoted above"
I know, but Mode S kit cannot be switched off - sorry I didn't explain that very well
Now a cynic might suggest that one of the drivers here is to enable a mechanism for charging (via Eurocontrol/NATS) for flights in "designated" airspace (read anywhere)
Before you laugh, we have a precedent:
Night flight in Class 'G' in a > 2 tonne aircraft when all the LARS have gone home