Oh, foolish me.
I thought we were innocent until PROVEN guilty. If I ant to use PGP to encrypt my Hard Drive, that's my option. If I am accused of committing a crime, and you produce the warrant to view my cell phone - I have a very simple choice: Comply with the warrant, or go to jail.
Odd, forced to prove your innocence, welcome to a "Fundamentally changed" America.
It's just that simple.