NSA’s authorities to collect signals intelligence data include procedures that protect the privacy of U.S. persons. Such protections are built into and cut across the entire process. Members of Congress have the same privacy protections as all U.S. persons. NSA is fully committed to transparency with Congress. Our interaction with Congress has been extensive both before and since the media disclosures began last June. We are reviewing Sen. Sanders’s letter now, and we will continue to work to ensure that all Members of Congress, including Sen. Sanders, have information about NSA’s mission, authorities, and programs to fully inform the discharge of their duties.