The thing is when it gets cheap enough, other players start enter the game too. Companies. Criminal gangs. Or even private individuals.
A situation of "if surveillance is outlawed, only outlaws will have surveillance" should be taken into account.
This last is the worthwhile part. The problem isn't surveillance, it's disproportional surveillance.
That is, people in power can only control the public while they retain a monopoly on power.
Since bulk surveillance is coming, the best outcome is equal surveillance and equal access.
Postscript: Privacy laws tend to lock you and I away from data, not powerful people who ruin lives.
Those two organizations work together all the time and know what works, so such conflicts are rare, but in a direct confrontation I think FAA easily wins.