There have been reports that the aircraft ID codes for the IDF have been programmed into Saudi air defense so that if an overflight was launched without permission, the Saudis would know whom they were and could make the appropriate excuses to the muslim world, that's all.
Regarding Iran's burial of its nuke program, Iran is the most tunneled country in the world, has been for many hundreds of years, it's hot there. The most prestigious civil engineering program in Iran is in underground structures.
Guess who used to be president of that engineering society? That's right, Achmed-i-nejad himself, that'e his professional field, mining and civil engineering.
Your turn to throw some of your researched tidbits in.
For those wishing to educate themselves on Iranian tunneling expertise, google “Qanat” and you will find that Iranians have been digging complicated water tunnels since about the time King David was herding goats.