that which isn't? isn't and the rules for secrets are still in effect
Let's say you do contract work. Would you be happy with your competition being able to intercept your bids? Or your calls to suppliers?
It's not "secret", but it's not necessarily information you want specific folks to have.
What about a young lady with a stalker? Any electronic message gives locational information of some sort.
What about a person trying to expose union crimes?
What about someone trying to stomp on a union?
Suppose you're trying to leave your place of employment. Good luck without emailing resumes or other contact information.
None of these may involve secrets, just information you DO NOT want to pass on to specific parties. IF there is no accountability, it WILL be abused for all of these purposes and hundreds of others. Even with things requiring warrants, abuse and mistakes are relatively common.
I am quite and not sarcastically sure that you BELIEVE most of what you disseminate is safe. Trust me, gimme access to what Leahy is proposing, and I could find significantly more than you'd ever think possible. Technically, could do SOME of that legally at the moment. But the acceptableness is moving only in one direction. And it will become easier and easier to hang any innocent man.