Originally Posted by
konradb
I take it that GPS in the area is reliable and the ADS-B can be relied on, as I have been told that there are areas around Iran, just like places in the Baltic, where GPS can be spoofed / degraded?
I meant spoofed to lie about identity. For example, a drone might claim to be an airliner that should be in the vicinity. Therefore, one would need to check a claim to be an airliner, e.g. using position and velocity.
I've noticed that the IRGs' acceptance of responsibility included a statement that communications weren't functioning properly. That could be the critical breakdown in safeguards - it could even make the one hour delay in take-off the critical hole in the system.