U.S. Attorney General Eric Holder wrote the chair of the Advisory Committee on the Criminal Rules, recommending an amendment to Rule 6(e), which governs the secrecy of grand-jury materials. In his letter, Holder suggested that "archival grand-jury materials of great historical significance" should be permitted to be disclosed "in appropriate circumstances." He asserted that such a change would "provide a temporal end point for grand-jury secrecy with respect to materials that become part of the permanent records of the National Archives." The effort would blunt federal-court efforts to create a "historical significance" exception to Rule 6(e).