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.
You could say the same thing about the 1st, 4th, and 5th amendments. "what about the children"