I do understand the S/W issues but when pressed the FBI will not say what the do with the "data of no interest". In wiretapping the FBI is out of control. Virtually every bit on electronic stuff that gets into the airwaves is now recorded. Good news bad news - they have about a 5 year backlog of stuff to listen too. Computer filtering it doing most of the work but there are still years of stuff a human needs to listen too.
BTW I do think there are 4th Amendment issues here but RP just goes over top in presentation. No this isn't just a W issue; JEH tapped the hell out of this country.
Read Shadow Warriors you’ll never trust the FBI again. When I read the history of the FBI and the Biography’s of J Edgar Hoover it’s hard to believe that anyone ever trusted them in the first place.