WASHINGTON (AP) — Exactly how many phone records of Americans does the National Security Agency collect in its massive surveillance program?

Sen. Dick Durbin of Illinois, the No. 2 Democrat in the Senate, tucked a provision into the 2014 fiscal year defense spending bill that would require the NSA to report to Congress — within 90 days after the legislation becomes law — on the precise number of phone records collected, the total reviewed by NSA employees and all bulk collection activities, including how much they cost and when they began.