National Security Memorandum on Partial Revocation of Presidential Policy Directive 28 The Executive Order of October 7, 2022 (Enhancing Safeguards for United States Signals Intelligence Activities), establishes enhanced safeguards for United States signals intelligence activities that supersede the safeguards for personal information collected through signals intelligence established by Presidential Policy Directive 28 of January 17, 2014 (Signals Intelligence Activities) (PPD-28). The Executive Order establishes enhanced safeguards in recognition that signals intelligence activities must be conducted in a manner that takes into account that all persons should be treated with dignity and respect, regardless of their nationality or wherever they might...