If the law sees it as anything other than what it is, a separation between what my data is and the fact that it belongs to me, in contrast to where it is stored, it will probably open a a big ass can of worms. Might as well change the name of the USA to North Korean States of America.

My opinion: If I write a poem in a notebook (hard drive) using a cipher (encryption) for which only I know the key, the law is able to take my notebook as evidence and process it as they see fit for their investigation, but the data is still mine, it's my set of bits which I'm entitled to not share with anyone unless it's my desire. I'd even say that to force me to share my data is equal to torturing me to get information from me. In both cases the law would be forcing me to reveal something against my consent, which is a violation of my rights however you look at it.

YMMV of course.