There is absolutely no reason for any government to have this capacity unless it is to target potential dissidents and critics of their political agenda (as well as training "pre-crime" tech).

Intel regarding terrorist-attacks and crime comes almost exclusively from HUMINT, not SIGINT.

This type of installment (which is basically already in place) reverses, in effect, the principle of a person being innocent until proven guilty (by due process) by deeming anyone a potential criminal as default. This is highly unacceptable in a society claiming to be free.

This reminds me of East-Germany's Stasi police - on steroids.