You do realize there is a difference between public and private transportation, right?
I have yet to see a precedent that supports the government getting as much data as TFA talks about while using my private transportation system. Or the Supreme Court deciding that making a person wait until "cops with bomb and drug sniffing dogs" show up to a traffic stop without probable cause is an "unreasonable search". I could go on and on...
Do you want a gold star? that in no way proves you have a "vested interest" in privacy, that just proves you have give some money to charity.
> The point is there is a strong and historic precedent that transportation systems are monitored
Yes and people that have a "vested interest" in privacy are concerned about and have problems with the current levels of surveillance on these systems,
You start off on the assumption that everyone agrees that aircraft should be tracked, and that data should be open to law enforcement review with no warrant. To the extent the data can be justified for safety it should be limited to that purpose only and barred by law from being used in any other manner. That is not how the law is today, as these records are used in all kinds of legal cases (both civil and criminal) outside of need for safety.
People that are actually pro privacy understand how these records are used and do not desire to see it expand to the tracking of every car on the road as a car is much more personally identifiable than a plane, and is in much more common usage.
in short, Maybe automobiles should not be treated differently and maybe it is time to look at how aircraft are tracked and what that tracking is used for changing the law to be more privacy focused