Letter: FBI Director Clarence M. Kelley to Kevin D. Rooney, Assistant Attorney General for Administration (July 19, 1977)

We have reason to believe that documents obtained from the Church of Scientology by the Federal Bureau of Investigation (FBI), in Washington, D.C. and Los Angeles, California, contain classified national security information. Such documents are currently in the possession of either the FBI Field Office or the U.S. Attorney’s Office in the aforementioned cities. Your Security Officer should have already received notification of the possible loss or compromise of national security information from responsible personnel within those offices.

In order for the Department Security Officer and the Department Review Committee to conduct a Department-wide national security damage assessment and for the Department Review Committee to recommend to the Attorney General appropriate administrative action pursuant to 28 CFR §17.38 (a)(4), it is requested that your Security Officer conduct an investigation into this matter and provide a preliminary report prior to July 29, 1977. […]