passports for national parks & domestic flights?

Apparently any state that refuses to comply with the Real ID Act will have its citizens forced to provide passports if they want to board a domestic flight or enter a national park. I have the suspicion that this is going to prove unenforceable, but it reeks of totalitarianism.

The Real ID Act has nothing to do with immigration or terrorism. It's about monitoring and regulating the movements of citizens. It's part of the New Serfdom.