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National Security Letters — Part 1

1188 pages · May 11, 2026 · Document date: Dec 4, 1981 · Broad topic: General · Topic: National Security Letters · 1018 pages OCR'd
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the year. At that point, I will be confident the data we provide to Congress in future reports is as accurate as humanly possible. in the meantime, we are taking several steps to correct the numbers we have previously reported. First, we are making data corrections in our database. Through a computer program, we have identified all entries that must be erroneous because there is an apparent error in the entry (e.g., there are more NSLs reported than requests; the date shows a year that is impossible (203)). We are manually reviewing those entries and making corrections. We have also started a random sampling of ten percent of the total entries in the OGC database which contains approximately 64,000 entries. Those entries will be manually checked against ACS. We will determine whether there is a significant difference between the entries in our database and the actual information in ACS, To the extent there is a difference, that will be the factor that will be used to correct our prior reporting. While not yielding an exact count, we believe that to be a statistically appropriate way of correcting prior reporting. We have discussed this methodology with the OIG and will offer it the opportunity to review our work. We are striving to have corrected reports to Congress as soon as possible. As with the other shortcomings identified by the OIG, there was no finding of an intent to deceive Congress concerning our use of NSLs. In fact, as noted, we identified deficiencies in our system for generating data prior to the initiation of the OIG's review and flagged the issue for Congress almost one year ago. While we do not know the extent of the inaccuracies in past reporting, we are confident that the numbers will not change by an order of magnitude. Exigent Letters The next significant finding of the OIG involved the use within one unit at Headquarters of so-called "exigent letters." These letters, which numbered in excess of 700, were provided to
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