[December 16, 2016 Letter to the Director of the Office of the Director of National Intelligence James R. Clapper] [open pdf - 181KB]
From the Letter: "As you know, Section 702 of the Foreign Intelligence Surveillance Act is scheduled to sunset on December 31, 2017. In the past, each of us has expressed concern that Section 702 surveillance programs may not adequately protect the privacy or civil liberties of United States persons. On April 22, 2016, we wrote to ask that you provide us with a public estimate of the number of communications or transactions involving United States persons that may be captured by Section 702 surveillance on an annual basis. Since that letter, your office and the National Security Agency have briefed our staff about the manner in which you might comply with this request. We understand that you have provided additional, classified briefings to the staff of the House and Senate Judiciary committees."
U.S. House Committee on the Judiciary: https://judiciary.house.gov/