Marianne Bailey, who was appointed to her position in July, has a twofold mission. The first element is internal to the National Security Agency (NSA). She has mission and resource oversight authority for what the agency formerly called the Information Assurance Directorate. The directorate was reorganized under the NSA21 initiative, launched early last year.
The second part of the mission is much broader. Bailey is charged with guarding national security systems across the entire government, including information systems used for intelligence collection, military command and control, and operation of major weapon systems.
Responsibility for national security systems is delegated from the president to the secretary of defense to the NSA commander to Bailey’s office.