this can’t be a surprise to anyone
of course, many still don’t realize that anything with a mic is open for recording (and later transcribing) 24x7
once the conversations have been recorded and stored, they are indexed for easier searching.
sometime in the future, a warrant from a judge will enable the feds to look up all digital information gathered in which you were involved or mentioned... over the proceeding 10+ years... to be used against you for whatever purpose they see fit
You would be surprised how many people still do not know that their laptop cameras or other webcams can be remotely accessed, along with any attached microphones as well.