Jonathan Zdziarski wrote an excellent article regarding the government’s fear of “warrant proof” places.
…In today’s technological landscape, we are no longer giving up just our current or future activity under warrant, but for the first time in history, making potentially years of our life retroactively searchable by law enforcement. Things are recorded in ways today that no one would have imagined, even when CALEA was passed. Past conversations were never obtainable by warrant because they were ephemeral – they ceased to exist after they were finished. The capability that DOJ is asserting is that our very lives and identities – going back across years – are subject to search. The Constitution never permitted this.
Warrant Proof is not something to be feared, it is something to be protected.