I can see that. Then the people with nothing to hide would get a discount and the police wouldn't bother to track them. Then the criminals would ask for the discount to hide in this demographic. Then the police would be back to square one and the telcos getting less money. So....? -- "My weakness is that I care too much"
The Po-Po would still be paying. I wasn't really meaning that seriously, although if someone gave me a discount for signing a snoop waiver, sure, I'll go for it. I assume the FBI and NSA do voice to text on all US phone conversations and then analyze the resulting text files anyways.