My instinct for self-preservation tells me that this is not a good thing. I understand the need for privacy, but what happens if somebody puts a gun (or a knife) to your face? I think that the need for privacy could be solved through the legislation: we can have very severe restrictions on who could look at this data and why. Also, we can have severe restrictions on the admissibility of such data in court. Unfortunately, I have not seen any credible efforts from politicians, right or left, to introduce privacy protections from the surveillance abuses.