do not give us any really clear picture of anything anything at all

If, for example, on average, 8 phone calls are made daily per US person, then the transfer of 3 phone records daily, from the NSA to the FBI, would correspond to about one phone record from every one of (say) 800 million

If the US is still prosecuting 100 terrorism-related cases a year, and all the data here was transferred to the FBI for such investigations, then it would work out to about 10 or 11 phone records per investigation, for a relative handful of investigations

The FBI in any year conducts about 160K investigations; as far as I can readily tell, based on the data allegedly provided here, if the NSA sent 3 phone records daily to the FBI, at most one case in every four hundred could involve such records

No clear analysis is being provided by your links: there's hysterical hyper-ventilation and outrage -- but that won't produce any meaningful reforms.