A new 60-page Government Accountability Office report said the department "lacks assurance that NAO operations will comply with applicable laws and privacy and civil liberties standards," according to a person familiar with the document. The report, which is unclassified but considered sensitive, hasn't been publicly released, but was described and quoted by several people who have read it. The report cites gaps in privacy safeguards. The department, it found, lacks controls to prevent improper use of domestic-intelligence data by other agencies and provided insufficient assurance that requests for classified information will be fully reviewed to ensure it can be legally provided.