The documents released on Friday are roughly 4,000 images in five data sets. That is a thin slice of the hundreds of thousands of files the Department of Justice has. In a letter to Congress obtained by Associated Press, the Department of Justice acknowledged that the complete set of files was not released and that the government expects more disclosures by the end of the year. Of the documents that were released, many were heavily redacted without explanation. For instance, over 100 images